use crate::askpass_modal::AskPassModal;
use crate::commit_modal::CommitModal;
use crate::commit_tooltip::CommitTooltip;
use crate::commit_view::CommitView;
use crate::project_diff::{self, Diff, ProjectDiff};
use crate::remote_output::{self, RemoteAction, SuccessMessage};
use crate::{branch_picker, picker_prompt, render_remote_button};
use crate::{
    git_panel_settings::GitPanelSettings, git_status_icon, repository_selector::RepositorySelector,
};
use agent_settings::AgentSettings;
use anyhow::Context as _;
use askpass::AskPassDelegate;
use cloud_llm_client::CompletionIntent;
use db::kvp::KEY_VALUE_STORE;
use editor::{
    Direction, Editor, EditorElement, EditorMode, MultiBuffer, MultiBufferOffset,
    actions::ExpandAllDiffHunks,
};
use futures::StreamExt as _;
use git::blame::ParsedCommitMessage;
use git::repository::{
    Branch, CommitDetails, CommitOptions, CommitSummary, DiffType, FetchOptions, GitCommitter,
    PushOptions, Remote, RemoteCommandOutput, ResetMode, Upstream, UpstreamTracking,
    UpstreamTrackingStatus, get_git_committer,
};
use git::stash::GitStash;
use git::status::StageStatus;
use git::{Amend, Signoff, ToggleStaged, repository::RepoPath, status::FileStatus};
use git::{
    ExpandCommitEditor, RestoreTrackedFiles, StageAll, StashAll, StashApply, StashPop,
    TrashUntrackedFiles, UnstageAll,
};
use gpui::{
    Action, AsyncApp, AsyncWindowContext, ClickEvent, Corner, DismissEvent, Entity, EventEmitter,
    FocusHandle, Focusable, KeyContext, ListHorizontalSizingBehavior, ListSizingBehavior,
    MouseButton, MouseDownEvent, Point, PromptLevel, ScrollStrategy, Subscription, Task,
    UniformListScrollHandle, WeakEntity, actions, anchored, deferred, uniform_list,
};
use itertools::Itertools;
use language::{Buffer, File};
use language_model::{
    ConfiguredModel, LanguageModelRegistry, LanguageModelRequest, LanguageModelRequestMessage, Role,
};
use menu::{Confirm, SecondaryConfirm, SelectFirst, SelectLast, SelectNext, SelectPrevious};
use multi_buffer::ExcerptInfo;
use notifications::status_toast::{StatusToast, ToastIcon};
use panel::{
    PanelHeader, panel_button, panel_editor_container, panel_editor_style, panel_filled_button,
    panel_icon_button,
};
use project::{
    Fs, Project, ProjectPath,
    git_store::{GitStoreEvent, Repository, RepositoryEvent, RepositoryId, pending_op},
    project_settings::{GitPathStyle, ProjectSettings},
};
use serde::{Deserialize, Serialize};
use settings::{Settings, SettingsStore, StatusStyle};
use std::future::Future;
use std::ops::Range;
use std::path::Path;
use std::{collections::HashSet, sync::Arc, time::Duration, usize};
use strum::{IntoEnumIterator, VariantNames};
use time::OffsetDateTime;
use ui::{
    ButtonLike, Checkbox, CommonAnimationExt, ContextMenu, ElevationIndex, PopoverMenu, ScrollAxes,
    Scrollbars, SplitButton, Tooltip, WithScrollbar, prelude::*,
};
use util::paths::PathStyle;
use util::{ResultExt, TryFutureExt, maybe};
use workspace::SERIALIZATION_THROTTLE_TIME;
use workspace::{
    Workspace,
    dock::{DockPosition, Panel, PanelEvent},
    notifications::{DetachAndPromptErr, ErrorMessagePrompt, NotificationId, NotifyResultExt},
};
actions!(
    git_panel,
    [
        /// Closes the git panel.
        Close,
        /// Toggles focus on the git panel.
        ToggleFocus,
        /// Opens the git panel menu.
        OpenMenu,
        /// Focuses on the commit message editor.
        FocusEditor,
        /// Focuses on the changes list.
        FocusChanges,
        /// Toggles automatic co-author suggestions.
        ToggleFillCoAuthors,
        /// Toggles sorting entries by path vs status.
        ToggleSortByPath,
    ]
);

fn prompt<T>(
    msg: &str,
    detail: Option<&str>,
    window: &mut Window,
    cx: &mut App,
) -> Task<anyhow::Result<T>>
where
    T: IntoEnumIterator + VariantNames + 'static,
{
    let rx = window.prompt(PromptLevel::Info, msg, detail, T::VARIANTS, cx);
    cx.spawn(async move |_| Ok(T::iter().nth(rx.await?).unwrap()))
}

#[derive(strum::EnumIter, strum::VariantNames)]
#[strum(serialize_all = "title_case")]
enum TrashCancel {
    Trash,
    Cancel,
}

struct GitMenuState {
    has_tracked_changes: bool,
    has_staged_changes: bool,
    has_unstaged_changes: bool,
    has_new_changes: bool,
    sort_by_path: bool,
    has_stash_items: bool,
}

fn git_panel_context_menu(
    focus_handle: FocusHandle,
    state: GitMenuState,
    window: &mut Window,
    cx: &mut App,
) -> Entity<ContextMenu> {
    ContextMenu::build(window, cx, move |context_menu, _, _| {
        context_menu
            .context(focus_handle)
            .action_disabled_when(
                !state.has_unstaged_changes,
                "Stage All",
                StageAll.boxed_clone(),
            )
            .action_disabled_when(
                !state.has_staged_changes,
                "Unstage All",
                UnstageAll.boxed_clone(),
            )
            .separator()
            .action_disabled_when(
                !(state.has_new_changes || state.has_tracked_changes),
                "Stash All",
                StashAll.boxed_clone(),
            )
            .action_disabled_when(!state.has_stash_items, "Stash Pop", StashPop.boxed_clone())
            .action("View Stash", zed_actions::git::ViewStash.boxed_clone())
            .separator()
            .action("Open Diff", project_diff::Diff.boxed_clone())
            .separator()
            .action_disabled_when(
                !state.has_tracked_changes,
                "Discard Tracked Changes",
                RestoreTrackedFiles.boxed_clone(),
            )
            .action_disabled_when(
                !state.has_new_changes,
                "Trash Untracked Files",
                TrashUntrackedFiles.boxed_clone(),
            )
            .separator()
            .entry(
                if state.sort_by_path {
                    "Sort by Status"
                } else {
                    "Sort by Path"
                },
                Some(Box::new(ToggleSortByPath)),
                move |window, cx| window.dispatch_action(Box::new(ToggleSortByPath), cx),
            )
    })
}

const GIT_PANEL_KEY: &str = "GitPanel";

const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);

pub fn register(workspace: &mut Workspace) {
    workspace.register_action(|workspace, _: &ToggleFocus, window, cx| {
        workspace.toggle_panel_focus::<GitPanel>(window, cx);
    });
    workspace.register_action(|workspace, _: &ExpandCommitEditor, window, cx| {
        CommitModal::toggle(workspace, None, window, cx)
    });
}

#[derive(Debug, Clone)]
pub enum Event {
    Focus,
}

#[derive(Serialize, Deserialize)]
struct SerializedGitPanel {
    width: Option<Pixels>,
    #[serde(default)]
    amend_pending: bool,
    #[serde(default)]
    signoff_enabled: bool,
}

#[derive(Debug, PartialEq, Eq, Clone, Copy)]
enum Section {
    Conflict,
    Tracked,
    New,
}

#[derive(Debug, PartialEq, Eq, Clone)]
struct GitHeaderEntry {
    header: Section,
}

impl GitHeaderEntry {
    pub fn contains(&self, status_entry: &GitStatusEntry, repo: &Repository) -> bool {
        let this = &self.header;
        let status = status_entry.status;
        match this {
            Section::Conflict => {
                repo.had_conflict_on_last_merge_head_change(&status_entry.repo_path)
            }
            Section::Tracked => !status.is_created(),
            Section::New => status.is_created(),
        }
    }
    pub fn title(&self) -> &'static str {
        match self.header {
            Section::Conflict => "Conflicts",
            Section::Tracked => "Tracked",
            Section::New => "Untracked",
        }
    }
}

#[derive(Debug, PartialEq, Eq, Clone)]
enum GitListEntry {
    Status(GitStatusEntry),
    Header(GitHeaderEntry),
}

impl GitListEntry {
    fn status_entry(&self) -> Option<&GitStatusEntry> {
        match self {
            GitListEntry::Status(entry) => Some(entry),
            _ => None,
        }
    }
}

#[derive(Debug, PartialEq, Eq, Clone)]
pub struct GitStatusEntry {
    pub(crate) repo_path: RepoPath,
    pub(crate) status: FileStatus,
    pub(crate) staging: StageStatus,
}

impl GitStatusEntry {
    fn display_name(&self, path_style: PathStyle) -> String {
        self.repo_path
            .file_name()
            .map(|name| name.to_owned())
            .unwrap_or_else(|| self.repo_path.display(path_style).to_string())
    }

    fn parent_dir(&self, path_style: PathStyle) -> Option<String> {
        self.repo_path
            .parent()
            .map(|parent| parent.display(path_style).to_string())
    }
}

struct TruncatedPatch {
    header: String,
    hunks: Vec<String>,
    hunks_to_keep: usize,
}

impl TruncatedPatch {
    fn from_unified_diff(patch_str: &str) -> Option<Self> {
        let lines: Vec<&str> = patch_str.lines().collect();
        if lines.len() < 2 {
            return None;
        }
        let header = format!("{}\n{}\n", lines[0], lines[1]);
        let mut hunks = Vec::new();
        let mut current_hunk = String::new();
        for line in &lines[2..] {
            if line.starts_with("@@") {
                if !current_hunk.is_empty() {
                    hunks.push(current_hunk);
                }
                current_hunk = format!("{}\n", line);
            } else if !current_hunk.is_empty() {
                current_hunk.push_str(line);
                current_hunk.push('\n');
            }
        }
        if !current_hunk.is_empty() {
            hunks.push(current_hunk);
        }
        if hunks.is_empty() {
            return None;
        }
        let hunks_to_keep = hunks.len();
        Some(TruncatedPatch {
            header,
            hunks,
            hunks_to_keep,
        })
    }
    fn calculate_size(&self) -> usize {
        let mut size = self.header.len();
        for (i, hunk) in self.hunks.iter().enumerate() {
            if i < self.hunks_to_keep {
                size += hunk.len();
            }
        }
        size
    }
    fn to_string(&self) -> String {
        let mut out = self.header.clone();
        for (i, hunk) in self.hunks.iter().enumerate() {
            if i < self.hunks_to_keep {
                out.push_str(hunk);
            }
        }
        let skipped_hunks = self.hunks.len() - self.hunks_to_keep;
        if skipped_hunks > 0 {
            out.push_str(&format!("[...skipped {} hunks...]\n", skipped_hunks));
        }
        out
    }
}

pub struct GitPanel {
    pub(crate) active_repository: Option<Entity<Repository>>,
    pub(crate) commit_editor: Entity<Editor>,
    conflicted_count: usize,
    conflicted_staged_count: usize,
    add_coauthors: bool,
    generate_commit_message_task: Option<Task<Option<()>>>,
    entries: Vec<GitListEntry>,
    single_staged_entry: Option<GitStatusEntry>,
    single_tracked_entry: Option<GitStatusEntry>,
    focus_handle: FocusHandle,
    fs: Arc<dyn Fs>,
    new_count: usize,
    entry_count: usize,
    new_staged_count: usize,
    pending_commit: Option<Task<()>>,
    amend_pending: bool,
    original_commit_message: Option<String>,
    signoff_enabled: bool,
    pending_serialization: Task<()>,
    pub(crate) project: Entity<Project>,
    scroll_handle: UniformListScrollHandle,
    max_width_item_index: Option<usize>,
    selected_entry: Option<usize>,
    marked_entries: Vec<usize>,
    tracked_count: usize,
    tracked_staged_count: usize,
    update_visible_entries_task: Task<()>,
    width: Option<Pixels>,
    workspace: WeakEntity<Workspace>,
    context_menu: Option<(Entity<ContextMenu>, Point<Pixels>, Subscription)>,
    modal_open: bool,
    show_placeholders: bool,
    local_committer: Option<GitCommitter>,
    local_committer_task: Option<Task<()>>,
    bulk_staging: Option<BulkStaging>,
    stash_entries: GitStash,
    _settings_subscription: Subscription,
}

#[derive(Clone, Debug, PartialEq, Eq)]
struct BulkStaging {
    repo_id: RepositoryId,
    anchor: RepoPath,
}

const MAX_PANEL_EDITOR_LINES: usize = 6;

pub(crate) fn commit_message_editor(
    commit_message_buffer: Entity<Buffer>,
    placeholder: Option<SharedString>,
    project: Entity<Project>,
    in_panel: bool,
    window: &mut Window,
    cx: &mut Context<Editor>,
) -> Editor {
    let buffer = cx.new(|cx| MultiBuffer::singleton(commit_message_buffer, cx));
    let max_lines = if in_panel { MAX_PANEL_EDITOR_LINES } else { 18 };
    let mut commit_editor = Editor::new(
        EditorMode::AutoHeight {
            min_lines: max_lines,
            max_lines: Some(max_lines),
        },
        buffer,
        None,
        window,
        cx,
    );
    commit_editor.set_collaboration_hub(Box::new(project));
    commit_editor.set_use_autoclose(false);
    commit_editor.set_show_gutter(false, cx);
    commit_editor.set_use_modal_editing(true);
    commit_editor.set_show_wrap_guides(false, cx);
    commit_editor.set_show_indent_guides(false, cx);
    let placeholder = placeholder.unwrap_or("Enter commit message".into());
    commit_editor.set_placeholder_text(&placeholder, window, cx);
    commit_editor
}

impl GitPanel {
    fn new(
        workspace: &mut Workspace,
        window: &mut Window,
        cx: &mut Context<Workspace>,
    ) -> Entity<Self> {
        let project = workspace.project().clone();
        let app_state = workspace.app_state().clone();
        let fs = app_state.fs.clone();
        let git_store = project.read(cx).git_store().clone();
        let active_repository = project.read(cx).active_repository(cx);

        cx.new(|cx| {
            let focus_handle = cx.focus_handle();
            cx.on_focus(&focus_handle, window, Self::focus_in).detach();

            let mut was_sort_by_path = GitPanelSettings::get_global(cx).sort_by_path;
            cx.observe_global_in::<SettingsStore>(window, move |this, window, cx| {
                let is_sort_by_path = GitPanelSettings::get_global(cx).sort_by_path;
                if is_sort_by_path != was_sort_by_path {
                    this.entries.clear();
                    this.bulk_staging.take();
                    this.update_visible_entries(window, cx);
                }
                was_sort_by_path = is_sort_by_path
            })
            .detach();

            // just to let us render a placeholder editor.
            // Once the active git repo is set, this buffer will be replaced.
            let temporary_buffer = cx.new(|cx| Buffer::local("", cx));
            let commit_editor = cx.new(|cx| {
                commit_message_editor(temporary_buffer, None, project.clone(), true, window, cx)
            });

            commit_editor.update(cx, |editor, cx| {
                editor.clear(window, cx);
            });

            let scroll_handle = UniformListScrollHandle::new();

            let mut was_ai_enabled = AgentSettings::get_global(cx).enabled(cx);
            let _settings_subscription = cx.observe_global::<SettingsStore>(move |_, cx| {
                let is_ai_enabled = AgentSettings::get_global(cx).enabled(cx);
                if was_ai_enabled != is_ai_enabled {
                    was_ai_enabled = is_ai_enabled;
                    cx.notify();
                }
            });

            cx.subscribe_in(
                &git_store,
                window,
                move |this, _git_store, event, window, cx| match event {
                    GitStoreEvent::ActiveRepositoryChanged(_) => {
                        this.active_repository = this.project.read(cx).active_repository(cx);
                        this.schedule_update(window, cx);
                    }
                    GitStoreEvent::RepositoryUpdated(
                        _,
                        RepositoryEvent::StatusesChanged
                        | RepositoryEvent::BranchChanged
                        | RepositoryEvent::MergeHeadsChanged,
                        true,
                    )
                    | GitStoreEvent::RepositoryAdded
                    | GitStoreEvent::RepositoryRemoved(_) => {
                        this.schedule_update(window, cx);
                    }
                    GitStoreEvent::IndexWriteError(error) => {
                        this.workspace
                            .update(cx, |workspace, cx| {
                                workspace.show_error(error, cx);
                            })
                            .ok();
                    }
                    GitStoreEvent::RepositoryUpdated(_, _, _) => {}
                    GitStoreEvent::JobsUpdated | GitStoreEvent::ConflictsUpdated => {}
                },
            )
            .detach();

            let mut this = Self {
                active_repository,
                commit_editor,
                conflicted_count: 0,
                conflicted_staged_count: 0,
                add_coauthors: true,
                generate_commit_message_task: None,
                entries: Vec::new(),
                focus_handle: cx.focus_handle(),
                fs,
                new_count: 0,
                new_staged_count: 0,
                pending_commit: None,
                amend_pending: false,
                original_commit_message: None,
                signoff_enabled: false,
                pending_serialization: Task::ready(()),
                single_staged_entry: None,
                single_tracked_entry: None,
                project,
                scroll_handle,
                max_width_item_index: None,
                selected_entry: None,
                marked_entries: Vec::new(),
                tracked_count: 0,
                tracked_staged_count: 0,
                update_visible_entries_task: Task::ready(()),
                width: None,
                show_placeholders: false,
                local_committer: None,
                local_committer_task: None,
                context_menu: None,
                workspace: workspace.weak_handle(),
                modal_open: false,
                entry_count: 0,
                bulk_staging: None,
                stash_entries: Default::default(),
                _settings_subscription,
            };

            this.schedule_update(window, cx);
            this
        })
    }

    pub fn entry_by_path(&self, path: &RepoPath, cx: &App) -> Option<usize> {
        if GitPanelSettings::get_global(cx).sort_by_path {
            return self
                .entries
                .binary_search_by(|entry| entry.status_entry().unwrap().repo_path.cmp(path))
                .ok();
        }

        if self.conflicted_count > 0 {
            let conflicted_start = 1;
            if let Ok(ix) = self.entries[conflicted_start..conflicted_start + self.conflicted_count]
                .binary_search_by(|entry| entry.status_entry().unwrap().repo_path.cmp(path))
            {
                return Some(conflicted_start + ix);
            }
        }
        if self.tracked_count > 0 {
            let tracked_start = if self.conflicted_count > 0 {
                1 + self.conflicted_count
            } else {
                0
            } + 1;
            if let Ok(ix) = self.entries[tracked_start..tracked_start + self.tracked_count]
                .binary_search_by(|entry| entry.status_entry().unwrap().repo_path.cmp(path))
            {
                return Some(tracked_start + ix);
            }
        }
        if self.new_count > 0 {
            let untracked_start = if self.conflicted_count > 0 {
                1 + self.conflicted_count
            } else {
                0
            } + if self.tracked_count > 0 {
                1 + self.tracked_count
            } else {
                0
            } + 1;
            if let Ok(ix) = self.entries[untracked_start..untracked_start + self.new_count]
                .binary_search_by(|entry| entry.status_entry().unwrap().repo_path.cmp(path))
            {
                return Some(untracked_start + ix);
            }
        }
        None
    }

    pub fn select_entry_by_path(
        &mut self,
        path: ProjectPath,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let Some(git_repo) = self.active_repository.as_ref() else {
            return;
        };
        let Some(repo_path) = git_repo.read(cx).project_path_to_repo_path(&path, cx) else {
            return;
        };
        let Some(ix) = self.entry_by_path(&repo_path, cx) else {
            return;
        };
        self.selected_entry = Some(ix);
        cx.notify();
    }

    fn serialization_key(workspace: &Workspace) -> Option<String> {
        workspace
            .database_id()
            .map(|id| i64::from(id).to_string())
            .or(workspace.session_id())
            .map(|id| format!("{}-{:?}", GIT_PANEL_KEY, id))
    }

    fn serialize(&mut self, cx: &mut Context<Self>) {
        let width = self.width;
        let amend_pending = self.amend_pending;
        let signoff_enabled = self.signoff_enabled;

        self.pending_serialization = cx.spawn(async move |git_panel, cx| {
            cx.background_executor()
                .timer(SERIALIZATION_THROTTLE_TIME)
                .await;
            let Some(serialization_key) = git_panel
                .update(cx, |git_panel, cx| {
                    git_panel
                        .workspace
                        .read_with(cx, |workspace, _| Self::serialization_key(workspace))
                        .ok()
                        .flatten()
                })
                .ok()
                .flatten()
            else {
                return;
            };
            cx.background_spawn(
                async move {
                    KEY_VALUE_STORE
                        .write_kvp(
                            serialization_key,
                            serde_json::to_string(&SerializedGitPanel {
                                width,
                                amend_pending,
                                signoff_enabled,
                            })?,
                        )
                        .await?;
                    anyhow::Ok(())
                }
                .log_err(),
            )
            .await;
        });
    }

    pub(crate) fn set_modal_open(&mut self, open: bool, cx: &mut Context<Self>) {
        self.modal_open = open;
        cx.notify();
    }

    fn dispatch_context(&self, window: &mut Window, cx: &Context<Self>) -> KeyContext {
        let mut dispatch_context = KeyContext::new_with_defaults();
        dispatch_context.add("GitPanel");

        if window
            .focused(cx)
            .is_some_and(|focused| self.focus_handle == focused)
        {
            dispatch_context.add("menu");
            dispatch_context.add("ChangesList");
        }

        if self.commit_editor.read(cx).is_focused(window) {
            dispatch_context.add("CommitEditor");
        }

        dispatch_context
    }

    fn close_panel(&mut self, _: &Close, _window: &mut Window, cx: &mut Context<Self>) {
        cx.emit(PanelEvent::Close);
    }

    fn focus_in(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        if !self.focus_handle.contains_focused(window, cx) {
            cx.emit(Event::Focus);
        }
    }

    fn scroll_to_selected_entry(&mut self, cx: &mut Context<Self>) {
        if let Some(selected_entry) = self.selected_entry {
            self.scroll_handle
                .scroll_to_item(selected_entry, ScrollStrategy::Center);
        }

        cx.notify();
    }

    fn select_first(&mut self, _: &SelectFirst, _window: &mut Window, cx: &mut Context<Self>) {
        if !self.entries.is_empty() {
            self.selected_entry = Some(1);
            self.scroll_to_selected_entry(cx);
        }
    }

    fn select_previous(
        &mut self,
        _: &SelectPrevious,
        _window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let item_count = self.entries.len();
        if item_count == 0 {
            return;
        }

        if let Some(selected_entry) = self.selected_entry {
            let new_selected_entry = if selected_entry > 0 {
                selected_entry - 1
            } else {
                selected_entry
            };

            if matches!(
                self.entries.get(new_selected_entry),
                Some(GitListEntry::Header(..))
            ) {
                if new_selected_entry > 0 {
                    self.selected_entry = Some(new_selected_entry - 1)
                }
            } else {
                self.selected_entry = Some(new_selected_entry);
            }

            self.scroll_to_selected_entry(cx);
        }

        cx.notify();
    }

    fn select_next(&mut self, _: &SelectNext, _window: &mut Window, cx: &mut Context<Self>) {
        let item_count = self.entries.len();
        if item_count == 0 {
            return;
        }

        if let Some(selected_entry) = self.selected_entry {
            let new_selected_entry = if selected_entry < item_count - 1 {
                selected_entry + 1
            } else {
                selected_entry
            };
            if matches!(
                self.entries.get(new_selected_entry),
                Some(GitListEntry::Header(..))
            ) {
                self.selected_entry = Some(new_selected_entry + 1);
            } else {
                self.selected_entry = Some(new_selected_entry);
            }

            self.scroll_to_selected_entry(cx);
        }

        cx.notify();
    }

    fn select_last(&mut self, _: &SelectLast, _window: &mut Window, cx: &mut Context<Self>) {
        if self.entries.last().is_some() {
            self.selected_entry = Some(self.entries.len() - 1);
            self.scroll_to_selected_entry(cx);
        }
    }

    fn focus_editor(&mut self, _: &FocusEditor, window: &mut Window, cx: &mut Context<Self>) {
        self.commit_editor.update(cx, |editor, cx| {
            window.focus(&editor.focus_handle(cx));
        });
        cx.notify();
    }

    fn select_first_entry_if_none(&mut self, cx: &mut Context<Self>) {
        let have_entries = self
            .active_repository
            .as_ref()
            .is_some_and(|active_repository| active_repository.read(cx).status_summary().count > 0);
        if have_entries && self.selected_entry.is_none() {
            self.selected_entry = Some(1);
            self.scroll_to_selected_entry(cx);
            cx.notify();
        }
    }

    fn focus_changes_list(
        &mut self,
        _: &FocusChanges,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        self.select_first_entry_if_none(cx);

        self.focus_handle.focus(window);
        cx.notify();
    }

    fn get_selected_entry(&self) -> Option<&GitListEntry> {
        self.selected_entry.and_then(|i| self.entries.get(i))
    }

    fn open_diff(&mut self, _: &menu::Confirm, window: &mut Window, cx: &mut Context<Self>) {
        maybe!({
            let entry = self.entries.get(self.selected_entry?)?.status_entry()?;
            let workspace = self.workspace.upgrade()?;
            let git_repo = self.active_repository.as_ref()?;

            if let Some(project_diff) = workspace.read(cx).active_item_as::<ProjectDiff>(cx)
                && let Some(project_path) = project_diff.read(cx).active_path(cx)
                && Some(&entry.repo_path)
                    == git_repo
                        .read(cx)
                        .project_path_to_repo_path(&project_path, cx)
                        .as_ref()
            {
                project_diff.focus_handle(cx).focus(window);
                project_diff.update(cx, |project_diff, cx| project_diff.autoscroll(cx));
                return None;
            };

            self.workspace
                .update(cx, |workspace, cx| {
                    ProjectDiff::deploy_at(workspace, Some(entry.clone()), window, cx);
                })
                .ok();
            self.focus_handle.focus(window);

            Some(())
        });
    }

    fn open_file(
        &mut self,
        _: &menu::SecondaryConfirm,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        maybe!({
            let entry = self.entries.get(self.selected_entry?)?.status_entry()?;
            let active_repo = self.active_repository.as_ref()?;
            let path = active_repo
                .read(cx)
                .repo_path_to_project_path(&entry.repo_path, cx)?;
            if entry.status.is_deleted() {
                return None;
            }

            let open_task = self
                .workspace
                .update(cx, |workspace, cx| {
                    workspace.open_path_preview(path, None, false, false, true, window, cx)
                })
                .ok()?;

            cx.spawn_in(window, async move |_, mut cx| {
                let item = open_task
                    .await
                    .notify_async_err(&mut cx)
                    .ok_or_else(|| anyhow::anyhow!("Failed to open file"))?;
                if let Some(active_editor) = item.downcast::<Editor>() {
                    if let Some(diff_task) =
                        active_editor.update(cx, |editor, _cx| editor.wait_for_diff_to_load())?
                    {
                        diff_task.await;
                    }

                    cx.update(|window, cx| {
                        active_editor.update(cx, |editor, cx| {
                            editor.expand_all_diff_hunks(&ExpandAllDiffHunks, window, cx);

                            let snapshot = editor.snapshot(window, cx);
                            editor.go_to_hunk_before_or_after_position(
                                &snapshot,
                                language::Point::new(0, 0),
                                Direction::Next,
                                window,
                                cx,
                            );
                        })
                    })?;
                }

                anyhow::Ok(())
            })
            .detach();

            Some(())
        });
    }

    fn revert_selected(
        &mut self,
        action: &git::RestoreFile,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let path_style = self.project.read(cx).path_style(cx);
        maybe!({
            let list_entry = self.entries.get(self.selected_entry?)?.clone();
            let entry = list_entry.status_entry()?.to_owned();
            let skip_prompt = action.skip_prompt || entry.status.is_created();

            let prompt = if skip_prompt {
                Task::ready(Ok(0))
            } else {
                let prompt = window.prompt(
                    PromptLevel::Warning,
                    &format!(
                        "Are you sure you want to restore {}?",
                        entry
                            .repo_path
                            .file_name()
                            .unwrap_or(entry.repo_path.display(path_style).as_ref()),
                    ),
                    None,
                    &["Restore", "Cancel"],
                    cx,
                );
                cx.background_spawn(prompt)
            };

            let this = cx.weak_entity();
            window
                .spawn(cx, async move |cx| {
                    if prompt.await? != 0 {
                        return anyhow::Ok(());
                    }

                    this.update_in(cx, |this, window, cx| {
                        this.revert_entry(&entry, window, cx);
                    })?;

                    Ok(())
                })
                .detach();
            Some(())
        });
    }

    fn add_to_gitignore(
        &mut self,
        _: &git::AddToGitignore,
        _window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        maybe!({
            let list_entry = self.entries.get(self.selected_entry?)?.clone();
            let entry = list_entry.status_entry()?.to_owned();

            if !entry.status.is_created() {
                return Some(());
            }

            let project = self.project.downgrade();
            let repo_path = entry.repo_path;
            let active_repository = self.active_repository.as_ref()?.downgrade();

            cx.spawn(async move |_, cx| {
                let file_path_str = repo_path.as_ref().display(PathStyle::Posix);

                let repo_root = active_repository.read_with(cx, |repository, _| {
                    repository.snapshot().work_directory_abs_path
                })?;

                let gitignore_abs_path = repo_root.join(".gitignore");

                let buffer = project
                    .update(cx, |project, cx| {
                        project.open_local_buffer(gitignore_abs_path, cx)
                    })?
                    .await?;

                let mut should_save = false;
                buffer.update(cx, |buffer, cx| {
                    let existing_content = buffer.text();

                    if existing_content
                        .lines()
                        .any(|line| line.trim() == file_path_str)
                    {
                        return;
                    }

                    let insert_position = existing_content.len();
                    let new_entry = if existing_content.is_empty() {
                        format!("{}\n", file_path_str)
                    } else if existing_content.ends_with('\n') {
                        format!("{}\n", file_path_str)
                    } else {
                        format!("\n{}\n", file_path_str)
                    };

                    buffer.edit([(insert_position..insert_position, new_entry)], None, cx);
                    should_save = true;
                })?;

                if should_save {
                    project
                        .update(cx, |project, cx| project.save_buffer(buffer, cx))?
                        .await?;
                }

                anyhow::Ok(())
            })
            .detach_and_log_err(cx);

            Some(())
        });
    }

    fn revert_entry(
        &mut self,
        entry: &GitStatusEntry,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        maybe!({
            let active_repo = self.active_repository.clone()?;
            let path = active_repo
                .read(cx)
                .repo_path_to_project_path(&entry.repo_path, cx)?;
            let workspace = self.workspace.clone();

            if entry.status.staging().has_staged() {
                self.change_file_stage(false, vec![entry.clone()], cx);
            }
            let filename = path.path.file_name()?.to_string();

            if !entry.status.is_created() {
                self.perform_checkout(vec![entry.clone()], window, cx);
            } else {
                let prompt = prompt(&format!("Trash {}?", filename), None, window, cx);
                cx.spawn_in(window, async move |_, cx| {
                    match prompt.await? {
                        TrashCancel::Trash => {}
                        TrashCancel::Cancel => return Ok(()),
                    }
                    let task = workspace.update(cx, |workspace, cx| {
                        workspace
                            .project()
                            .update(cx, |project, cx| project.delete_file(path, true, cx))
                    })?;
                    if let Some(task) = task {
                        task.await?;
                    }
                    Ok(())
                })
                .detach_and_prompt_err(
                    "Failed to trash file",
                    window,
                    cx,
                    |e, _, _| Some(format!("{e}")),
                );
            }
            Some(())
        });
    }

    fn perform_checkout(
        &mut self,
        entries: Vec<GitStatusEntry>,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let workspace = self.workspace.clone();
        let Some(active_repository) = self.active_repository.clone() else {
            return;
        };

        let task = cx.spawn_in(window, async move |this, cx| {
            let tasks: Vec<_> = workspace.update(cx, |workspace, cx| {
                workspace.project().update(cx, |project, cx| {
                    entries
                        .iter()
                        .filter_map(|entry| {
                            let path = active_repository
                                .read(cx)
                                .repo_path_to_project_path(&entry.repo_path, cx)?;
                            Some(project.open_buffer(path, cx))
                        })
                        .collect()
                })
            })?;

            let buffers = futures::future::join_all(tasks).await;

            this.update_in(cx, |this, window, cx| {
                let task = active_repository.update(cx, |repo, cx| {
                    repo.checkout_files(
                        "HEAD",
                        entries
                            .into_iter()
                            .map(|entries| entries.repo_path)
                            .collect(),
                        cx,
                    )
                });
                this.update_visible_entries(window, cx);
                cx.notify();
                task
            })?
            .await?;

            let tasks: Vec<_> = cx.update(|_, cx| {
                buffers
                    .iter()
                    .filter_map(|buffer| {
                        buffer.as_ref().ok()?.update(cx, |buffer, cx| {
                            buffer.is_dirty().then(|| buffer.reload(cx))
                        })
                    })
                    .collect()
            })?;

            futures::future::join_all(tasks).await;

            Ok(())
        });

        cx.spawn_in(window, async move |this, cx| {
            let result = task.await;

            this.update_in(cx, |this, window, cx| {
                if let Err(err) = result {
                    this.update_visible_entries(window, cx);
                    this.show_error_toast("checkout", err, cx);
                }
            })
            .ok();
        })
        .detach();
    }

    fn restore_tracked_files(
        &mut self,
        _: &RestoreTrackedFiles,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let entries = self
            .entries
            .iter()
            .filter_map(|entry| entry.status_entry().cloned())
            .filter(|status_entry| !status_entry.status.is_created())
            .collect::<Vec<_>>();

        match entries.len() {
            0 => return,
            1 => return self.revert_entry(&entries[0], window, cx),
            _ => {}
        }
        let mut details = entries
            .iter()
            .filter_map(|entry| entry.repo_path.as_ref().file_name())
            .map(|filename| filename.to_string())
            .take(5)
            .join("\n");
        if entries.len() > 5 {
            details.push_str(&format!("\nand {} more…", entries.len() - 5))
        }

        #[derive(strum::EnumIter, strum::VariantNames)]
        #[strum(serialize_all = "title_case")]
        enum RestoreCancel {
            RestoreTrackedFiles,
            Cancel,
        }
        let prompt = prompt(
            "Discard changes to these files?",
            Some(&details),
            window,
            cx,
        );
        cx.spawn_in(window, async move |this, cx| {
            if let Ok(RestoreCancel::RestoreTrackedFiles) = prompt.await {
                this.update_in(cx, |this, window, cx| {
                    this.perform_checkout(entries, window, cx);
                })
                .ok();
            }
        })
        .detach();
    }

    fn clean_all(&mut self, _: &TrashUntrackedFiles, window: &mut Window, cx: &mut Context<Self>) {
        let workspace = self.workspace.clone();
        let Some(active_repo) = self.active_repository.clone() else {
            return;
        };
        let to_delete = self
            .entries
            .iter()
            .filter_map(|entry| entry.status_entry())
            .filter(|status_entry| status_entry.status.is_created())
            .cloned()
            .collect::<Vec<_>>();

        match to_delete.len() {
            0 => return,
            1 => return self.revert_entry(&to_delete[0], window, cx),
            _ => {}
        };

        let mut details = to_delete
            .iter()
            .map(|entry| {
                entry
                    .repo_path
                    .as_ref()
                    .file_name()
                    .map(|f| f.to_string())
                    .unwrap_or_default()
            })
            .take(5)
            .join("\n");

        if to_delete.len() > 5 {
            details.push_str(&format!("\nand {} more…", to_delete.len() - 5))
        }

        let prompt = prompt("Trash these files?", Some(&details), window, cx);
        cx.spawn_in(window, async move |this, cx| {
            match prompt.await? {
                TrashCancel::Trash => {}
                TrashCancel::Cancel => return Ok(()),
            }
            let tasks = workspace.update(cx, |workspace, cx| {
                to_delete
                    .iter()
                    .filter_map(|entry| {
                        workspace.project().update(cx, |project, cx| {
                            let project_path = active_repo
                                .read(cx)
                                .repo_path_to_project_path(&entry.repo_path, cx)?;
                            project.delete_file(project_path, true, cx)
                        })
                    })
                    .collect::<Vec<_>>()
            })?;
            let to_unstage = to_delete
                .into_iter()
                .filter(|entry| !entry.status.staging().is_fully_unstaged())
                .collect();
            this.update(cx, |this, cx| this.change_file_stage(false, to_unstage, cx))?;
            for task in tasks {
                task.await?;
            }
            Ok(())
        })
        .detach_and_prompt_err("Failed to trash files", window, cx, |e, _, _| {
            Some(format!("{e}"))
        });
    }

    fn change_all_files_stage(&mut self, stage: bool, cx: &mut Context<Self>) {
        let Some(active_repository) = self.active_repository.clone() else {
            return;
        };
        cx.spawn({
            async move |this, cx| {
                let result = this
                    .update(cx, |this, cx| {
                        let task = active_repository.update(cx, |repo, cx| {
                            if stage {
                                repo.stage_all(cx)
                            } else {
                                repo.unstage_all(cx)
                            }
                        });
                        this.update_counts(active_repository.read(cx));
                        cx.notify();
                        task
                    })?
                    .await;

                this.update(cx, |this, cx| {
                    if let Err(err) = result {
                        this.show_error_toast(if stage { "add" } else { "reset" }, err, cx);
                    }
                    cx.notify()
                })
            }
        })
        .detach();
    }

    pub fn stage_all(&mut self, _: &StageAll, _window: &mut Window, cx: &mut Context<Self>) {
        self.change_all_files_stage(true, cx);
    }

    pub fn unstage_all(&mut self, _: &UnstageAll, _window: &mut Window, cx: &mut Context<Self>) {
        self.change_all_files_stage(false, cx);
    }

    fn toggle_staged_for_entry(
        &mut self,
        entry: &GitListEntry,
        _window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let Some(active_repository) = self.active_repository.as_ref() else {
            return;
        };
        let repo = active_repository.read(cx);
        let (stage, repo_paths) = match entry {
            GitListEntry::Status(status_entry) => {
                let repo_paths = vec![status_entry.clone()];
                let stage = if repo
                    .pending_ops_for_path(&status_entry.repo_path)
                    .map(|ops| ops.staging() || ops.staged())
                    .or_else(|| {
                        repo.status_for_path(&status_entry.repo_path)
                            .map(|status| status.status.staging().has_staged())
                    })
                    .unwrap_or(status_entry.staging.has_staged())
                {
                    if let Some(op) = self.bulk_staging.clone()
                        && op.anchor == status_entry.repo_path
                    {
                        self.bulk_staging = None;
                    }
                    false
                } else {
                    self.set_bulk_staging_anchor(status_entry.repo_path.clone(), cx);
                    true
                };
                (stage, repo_paths)
            }
            GitListEntry::Header(section) => {
                let goal_staged_state = !self.header_state(section.header).selected();
                let entries = self
                    .entries
                    .iter()
                    .filter_map(|entry| entry.status_entry())
                    .filter(|status_entry| {
                        section.contains(status_entry, repo)
                            && status_entry.staging.as_bool() != Some(goal_staged_state)
                    })
                    .cloned()
                    .collect::<Vec<_>>();

                (goal_staged_state, entries)
            }
        };
        self.change_file_stage(stage, repo_paths, cx);
    }

    fn change_file_stage(
        &mut self,
        stage: bool,
        entries: Vec<GitStatusEntry>,
        cx: &mut Context<Self>,
    ) {
        let Some(active_repository) = self.active_repository.clone() else {
            return;
        };
        cx.spawn({
            async move |this, cx| {
                let result = this
                    .update(cx, |this, cx| {
                        let task = active_repository.update(cx, |repo, cx| {
                            let repo_paths = entries
                                .iter()
                                .map(|entry| entry.repo_path.clone())
                                .collect();
                            if stage {
                                repo.stage_entries(repo_paths, cx)
                            } else {
                                repo.unstage_entries(repo_paths, cx)
                            }
                        });
                        this.update_counts(active_repository.read(cx));
                        cx.notify();
                        task
                    })?
                    .await;

                this.update(cx, |this, cx| {
                    if let Err(err) = result {
                        this.show_error_toast(if stage { "add" } else { "reset" }, err, cx);
                    }
                    cx.notify();
                })
            }
        })
        .detach();
    }

    pub fn total_staged_count(&self) -> usize {
        self.tracked_staged_count + self.new_staged_count + self.conflicted_staged_count
    }

    pub fn stash_pop(&mut self, _: &StashPop, _window: &mut Window, cx: &mut Context<Self>) {
        let Some(active_repository) = self.active_repository.clone() else {
            return;
        };

        cx.spawn({
            async move |this, cx| {
                let stash_task = active_repository
                    .update(cx, |repo, cx| repo.stash_pop(None, cx))?
                    .await;
                this.update(cx, |this, cx| {
                    stash_task
                        .map_err(|e| {
                            this.show_error_toast("stash pop", e, cx);
                        })
                        .ok();
                    cx.notify();
                })
            }
        })
        .detach();
    }

    pub fn stash_apply(&mut self, _: &StashApply, _window: &mut Window, cx: &mut Context<Self>) {
        let Some(active_repository) = self.active_repository.clone() else {
            return;
        };

        cx.spawn({
            async move |this, cx| {
                let stash_task = active_repository
                    .update(cx, |repo, cx| repo.stash_apply(None, cx))?
                    .await;
                this.update(cx, |this, cx| {
                    stash_task
                        .map_err(|e| {
                            this.show_error_toast("stash apply", e, cx);
                        })
                        .ok();
                    cx.notify();
                })
            }
        })
        .detach();
    }

    pub fn stash_all(&mut self, _: &StashAll, _window: &mut Window, cx: &mut Context<Self>) {
        let Some(active_repository) = self.active_repository.clone() else {
            return;
        };

        cx.spawn({
            async move |this, cx| {
                let stash_task = active_repository
                    .update(cx, |repo, cx| repo.stash_all(cx))?
                    .await;
                this.update(cx, |this, cx| {
                    stash_task
                        .map_err(|e| {
                            this.show_error_toast("stash", e, cx);
                        })
                        .ok();
                    cx.notify();
                })
            }
        })
        .detach();
    }

    pub fn commit_message_buffer(&self, cx: &App) -> Entity<Buffer> {
        self.commit_editor
            .read(cx)
            .buffer()
            .read(cx)
            .as_singleton()
            .unwrap()
    }

    fn toggle_staged_for_selected(
        &mut self,
        _: &git::ToggleStaged,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if let Some(selected_entry) = self.get_selected_entry().cloned() {
            self.toggle_staged_for_entry(&selected_entry, window, cx);
        }
    }

    fn stage_range(&mut self, _: &git::StageRange, _window: &mut Window, cx: &mut Context<Self>) {
        let Some(index) = self.selected_entry else {
            return;
        };
        self.stage_bulk(index, cx);
    }

    fn stage_selected(&mut self, _: &git::StageFile, _window: &mut Window, cx: &mut Context<Self>) {
        let Some(selected_entry) = self.get_selected_entry() else {
            return;
        };
        let Some(status_entry) = selected_entry.status_entry() else {
            return;
        };
        if status_entry.staging != StageStatus::Staged {
            self.change_file_stage(true, vec![status_entry.clone()], cx);
        }
    }

    fn unstage_selected(
        &mut self,
        _: &git::UnstageFile,
        _window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let Some(selected_entry) = self.get_selected_entry() else {
            return;
        };
        let Some(status_entry) = selected_entry.status_entry() else {
            return;
        };
        if status_entry.staging != StageStatus::Unstaged {
            self.change_file_stage(false, vec![status_entry.clone()], cx);
        }
    }

    fn commit(&mut self, _: &git::Commit, window: &mut Window, cx: &mut Context<Self>) {
        if self.amend_pending {
            return;
        }
        if self
            .commit_editor
            .focus_handle(cx)
            .contains_focused(window, cx)
        {
            telemetry::event!("Git Committed", source = "Git Panel");
            self.commit_changes(
                CommitOptions {
                    amend: false,
                    signoff: self.signoff_enabled,
                },
                window,
                cx,
            )
        } else {
            cx.propagate();
        }
    }

    fn amend(&mut self, _: &git::Amend, window: &mut Window, cx: &mut Context<Self>) {
        if self
            .commit_editor
            .focus_handle(cx)
            .contains_focused(window, cx)
        {
            if self.head_commit(cx).is_some() {
                if !self.amend_pending {
                    self.set_amend_pending(true, cx);
                    self.load_last_commit_message_if_empty(cx);
                } else {
                    telemetry::event!("Git Amended", source = "Git Panel");
                    self.commit_changes(
                        CommitOptions {
                            amend: true,
                            signoff: self.signoff_enabled,
                        },
                        window,
                        cx,
                    );
                }
            }
        } else {
            cx.propagate();
        }
    }

    pub fn head_commit(&self, cx: &App) -> Option<CommitDetails> {
        self.active_repository
            .as_ref()
            .and_then(|repo| repo.read(cx).head_commit.as_ref())
            .cloned()
    }

    pub fn load_last_commit_message_if_empty(&mut self, cx: &mut Context<Self>) {
        if !self.commit_editor.read(cx).is_empty(cx) {
            return;
        }
        let Some(head_commit) = self.head_commit(cx) else {
            return;
        };
        let recent_sha = head_commit.sha.to_string();
        let detail_task = self.load_commit_details(recent_sha, cx);
        cx.spawn(async move |this, cx| {
            if let Ok(message) = detail_task.await.map(|detail| detail.message) {
                this.update(cx, |this, cx| {
                    this.commit_message_buffer(cx).update(cx, |buffer, cx| {
                        let start = buffer.anchor_before(0);
                        let end = buffer.anchor_after(buffer.len());
                        buffer.edit([(start..end, message)], None, cx);
                    });
                })
                .log_err();
            }
        })
        .detach();
    }

    fn custom_or_suggested_commit_message(
        &self,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Option<String> {
        let git_commit_language = self
            .commit_editor
            .read(cx)
            .language_at(MultiBufferOffset(0), cx);
        let message = self.commit_editor.read(cx).text(cx);
        if message.is_empty() {
            return self
                .suggest_commit_message(cx)
                .filter(|message| !message.trim().is_empty());
        } else if message.trim().is_empty() {
            return None;
        }
        let buffer = cx.new(|cx| {
            let mut buffer = Buffer::local(message, cx);
            buffer.set_language(git_commit_language, cx);
            buffer
        });
        let editor = cx.new(|cx| Editor::for_buffer(buffer, None, window, cx));
        let wrapped_message = editor.update(cx, |editor, cx| {
            editor.select_all(&Default::default(), window, cx);
            editor.rewrap(&Default::default(), window, cx);
            editor.text(cx)
        });
        if wrapped_message.trim().is_empty() {
            return None;
        }
        Some(wrapped_message)
    }

    fn has_commit_message(&self, cx: &mut Context<Self>) -> bool {
        let text = self.commit_editor.read(cx).text(cx);
        if !text.trim().is_empty() {
            true
        } else if text.is_empty() {
            self.suggest_commit_message(cx)
                .is_some_and(|text| !text.trim().is_empty())
        } else {
            false
        }
    }

    pub(crate) fn commit_changes(
        &mut self,
        options: CommitOptions,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let Some(active_repository) = self.active_repository.clone() else {
            return;
        };
        let error_spawn = |message, window: &mut Window, cx: &mut App| {
            let prompt = window.prompt(PromptLevel::Warning, message, None, &["Ok"], cx);
            cx.spawn(async move |_| {
                prompt.await.ok();
            })
            .detach();
        };

        if self.has_unstaged_conflicts() {
            error_spawn(
                "There are still conflicts. You must stage these before committing",
                window,
                cx,
            );
            return;
        }

        let askpass = self.askpass_delegate("git commit", window, cx);
        let commit_message = self.custom_or_suggested_commit_message(window, cx);

        let Some(mut message) = commit_message else {
            self.commit_editor.read(cx).focus_handle(cx).focus(window);
            return;
        };

        if self.add_coauthors {
            self.fill_co_authors(&mut message, cx);
        }

        let task = if self.has_staged_changes() {
            // Repository serializes all git operations, so we can just send a commit immediately
            let commit_task = active_repository.update(cx, |repo, cx| {
                repo.commit(message.into(), None, options, askpass, cx)
            });
            cx.background_spawn(async move { commit_task.await? })
        } else {
            let changed_files = self
                .entries
                .iter()
                .filter_map(|entry| entry.status_entry())
                .filter(|status_entry| !status_entry.status.is_created())
                .map(|status_entry| status_entry.repo_path.clone())
                .collect::<Vec<_>>();

            if changed_files.is_empty() && !options.amend {
                error_spawn("No changes to commit", window, cx);
                return;
            }

            let stage_task =
                active_repository.update(cx, |repo, cx| repo.stage_entries(changed_files, cx));
            cx.spawn(async move |_, cx| {
                stage_task.await?;
                let commit_task = active_repository.update(cx, |repo, cx| {
                    repo.commit(message.into(), None, options, askpass, cx)
                })?;
                commit_task.await?
            })
        };
        let task = cx.spawn_in(window, async move |this, cx| {
            let result = task.await;
            this.update_in(cx, |this, window, cx| {
                this.pending_commit.take();
                match result {
                    Ok(()) => {
                        this.commit_editor
                            .update(cx, |editor, cx| editor.clear(window, cx));
                        this.original_commit_message = None;
                    }
                    Err(e) => this.show_error_toast("commit", e, cx),
                }
            })
            .ok();
        });

        self.pending_commit = Some(task);
        if options.amend {
            self.set_amend_pending(false, cx);
        }
    }

    pub(crate) fn uncommit(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let Some(repo) = self.active_repository.clone() else {
            return;
        };
        telemetry::event!("Git Uncommitted");

        let confirmation = self.check_for_pushed_commits(window, cx);
        let prior_head = self.load_commit_details("HEAD".to_string(), cx);

        let task = cx.spawn_in(window, async move |this, cx| {
            let result = maybe!(async {
                if let Ok(true) = confirmation.await {
                    let prior_head = prior_head.await?;

                    repo.update(cx, |repo, cx| {
                        repo.reset("HEAD^".to_string(), ResetMode::Soft, cx)
                    })?
                    .await??;

                    Ok(Some(prior_head))
                } else {
                    Ok(None)
                }
            })
            .await;

            this.update_in(cx, |this, window, cx| {
                this.pending_commit.take();
                match result {
                    Ok(None) => {}
                    Ok(Some(prior_commit)) => {
                        this.commit_editor.update(cx, |editor, cx| {
                            editor.set_text(prior_commit.message, window, cx)
                        });
                    }
                    Err(e) => this.show_error_toast("reset", e, cx),
                }
            })
            .ok();
        });

        self.pending_commit = Some(task);
    }

    fn check_for_pushed_commits(
        &mut self,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> impl Future<Output = anyhow::Result<bool>> + use<> {
        let repo = self.active_repository.clone();
        let mut cx = window.to_async(cx);

        async move {
            let repo = repo.context("No active repository")?;

            let pushed_to: Vec<SharedString> = repo
                .update(&mut cx, |repo, _| repo.check_for_pushed_commits())?
                .await??;

            if pushed_to.is_empty() {
                Ok(true)
            } else {
                #[derive(strum::EnumIter, strum::VariantNames)]
                #[strum(serialize_all = "title_case")]
                enum CancelUncommit {
                    Uncommit,
                    Cancel,
                }
                let detail = format!(
                    "This commit was already pushed to {}.",
                    pushed_to.into_iter().join(", ")
                );
                let result = cx
                    .update(|window, cx| prompt("Are you sure?", Some(&detail), window, cx))?
                    .await?;

                match result {
                    CancelUncommit::Cancel => Ok(false),
                    CancelUncommit::Uncommit => Ok(true),
                }
            }
        }
    }

    /// Suggests a commit message based on the changed files and their statuses
    pub fn suggest_commit_message(&self, cx: &App) -> Option<String> {
        if let Some(merge_message) = self
            .active_repository
            .as_ref()
            .and_then(|repo| repo.read(cx).merge.message.as_ref())
        {
            return Some(merge_message.to_string());
        }

        let git_status_entry = if let Some(staged_entry) = &self.single_staged_entry {
            Some(staged_entry)
        } else if self.total_staged_count() == 0
            && let Some(single_tracked_entry) = &self.single_tracked_entry
        {
            Some(single_tracked_entry)
        } else {
            None
        }?;

        let action_text = if git_status_entry.status.is_deleted() {
            Some("Delete")
        } else if git_status_entry.status.is_created() {
            Some("Create")
        } else if git_status_entry.status.is_modified() {
            Some("Update")
        } else {
            None
        }?;

        let file_name = git_status_entry
            .repo_path
            .file_name()
            .unwrap_or_default()
            .to_string();

        Some(format!("{} {}", action_text, file_name))
    }

    fn generate_commit_message_action(
        &mut self,
        _: &git::GenerateCommitMessage,
        _window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        self.generate_commit_message(cx);
    }

    fn split_patch(patch: &str) -> Vec<String> {
        let mut result = Vec::new();
        let mut current_patch = String::new();

        for line in patch.lines() {
            if line.starts_with("---") && !current_patch.is_empty() {
                result.push(current_patch.trim_end_matches('\n').into());
                current_patch = String::new();
            }
            current_patch.push_str(line);
            current_patch.push('\n');
        }

        if !current_patch.is_empty() {
            result.push(current_patch.trim_end_matches('\n').into());
        }

        result
    }
    fn truncate_iteratively(patch: &str, max_bytes: usize) -> String {
        let mut current_size = patch.len();
        if current_size <= max_bytes {
            return patch.to_string();
        }
        let file_patches = Self::split_patch(patch);
        let mut file_infos: Vec<TruncatedPatch> = file_patches
            .iter()
            .filter_map(|patch| TruncatedPatch::from_unified_diff(patch))
            .collect();

        if file_infos.is_empty() {
            return patch.to_string();
        }

        current_size = file_infos.iter().map(|f| f.calculate_size()).sum::<usize>();
        while current_size > max_bytes {
            let file_idx = file_infos
                .iter()
                .enumerate()
                .filter(|(_, f)| f.hunks_to_keep > 1)
                .max_by_key(|(_, f)| f.hunks_to_keep)
                .map(|(idx, _)| idx);
            match file_idx {
                Some(idx) => {
                    let file = &mut file_infos[idx];
                    let size_before = file.calculate_size();
                    file.hunks_to_keep -= 1;
                    let size_after = file.calculate_size();
                    let saved = size_before.saturating_sub(size_after);
                    current_size = current_size.saturating_sub(saved);
                }
                None => {
                    break;
                }
            }
        }

        file_infos
            .iter()
            .map(|info| info.to_string())
            .collect::<Vec<_>>()
            .join("\n")
    }

    pub fn compress_commit_diff(diff_text: &str, max_bytes: usize) -> String {
        if diff_text.len() <= max_bytes {
            return diff_text.to_string();
        }

        let mut compressed = diff_text
            .lines()
            .map(|line| {
                if line.len() > 256 {
                    format!("{}...[truncated]\n", &line[..256])
                } else {
                    format!("{}\n", line)
                }
            })
            .collect::<Vec<_>>()
            .join("");

        if compressed.len() <= max_bytes {
            return compressed;
        }

        compressed = Self::truncate_iteratively(&compressed, max_bytes);

        compressed
    }

    /// Generates a commit message using an LLM.
    pub fn generate_commit_message(&mut self, cx: &mut Context<Self>) {
        if !self.can_commit() || !AgentSettings::get_global(cx).enabled(cx) {
            return;
        }

        let Some(ConfiguredModel { provider, model }) =
            LanguageModelRegistry::read_global(cx).commit_message_model()
        else {
            return;
        };

        let Some(repo) = self.active_repository.as_ref() else {
            return;
        };

        telemetry::event!("Git Commit Message Generated");

        let diff = repo.update(cx, |repo, cx| {
            if self.has_staged_changes() {
                repo.diff(DiffType::HeadToIndex, cx)
            } else {
                repo.diff(DiffType::HeadToWorktree, cx)
            }
        });

        let temperature = AgentSettings::temperature_for_model(&model, cx);

        self.generate_commit_message_task = Some(cx.spawn(async move |this, cx| {
             async move {
                let _defer = cx.on_drop(&this, |this, _cx| {
                    this.generate_commit_message_task.take();
                });

                if let Some(task) = cx.update(|cx| {
                    if !provider.is_authenticated(cx) {
                        Some(provider.authenticate(cx))
                    } else {
                        None
                    }
                })? {
                    task.await.log_err();
                };

                let mut diff_text = match diff.await {
                    Ok(result) => match result {
                        Ok(text) => text,
                        Err(e) => {
                            Self::show_commit_message_error(&this, &e, cx);
                            return anyhow::Ok(());
                        }
                    },
                    Err(e) => {
                        Self::show_commit_message_error(&this, &e, cx);
                        return anyhow::Ok(());
                    }
                };

                const MAX_DIFF_BYTES: usize = 20_000;
                diff_text = Self::compress_commit_diff(&diff_text, MAX_DIFF_BYTES);

                let subject = this.update(cx, |this, cx| {
                    this.commit_editor.read(cx).text(cx).lines().next().map(ToOwned::to_owned).unwrap_or_default()
                })?;

                let text_empty = subject.trim().is_empty();

                let content = if text_empty {
                    format!("{PROMPT}\nHere are the changes in this commit:\n{diff_text}")
                } else {
                    format!("{PROMPT}\nHere is the user's subject line:\n{subject}\nHere are the changes in this commit:\n{diff_text}\n")
                };

                const PROMPT: &str = include_str!("commit_message_prompt.txt");

                let request = LanguageModelRequest {
                    thread_id: None,
                    prompt_id: None,
                    intent: Some(CompletionIntent::GenerateGitCommitMessage),
                    mode: None,
                    messages: vec![LanguageModelRequestMessage {
                        role: Role::User,
                        content: vec![content.into()],
                        cache: false,
            reasoning_details: None,
                    }],
                    tools: Vec::new(),
                    tool_choice: None,
                    stop: Vec::new(),
                    temperature,
                    thinking_allowed: false,
                };

                let stream = model.stream_completion_text(request, cx);
                match stream.await {
                    Ok(mut messages) => {
                        if !text_empty {
                            this.update(cx, |this, cx| {
                                this.commit_message_buffer(cx).update(cx, |buffer, cx| {
                                    let insert_position = buffer.anchor_before(buffer.len());
                                    buffer.edit([(insert_position..insert_position, "\n")], None, cx)
                                });
                            })?;
                        }

                        while let Some(message) = messages.stream.next().await {
                            match message {
                                Ok(text) => {
                                    this.update(cx, |this, cx| {
                                        this.commit_message_buffer(cx).update(cx, |buffer, cx| {
                                            let insert_position = buffer.anchor_before(buffer.len());
                                            buffer.edit([(insert_position..insert_position, text)], None, cx);
                                        });
                                    })?;
                                }
                                Err(e) => {
                                    Self::show_commit_message_error(&this, &e, cx);
                                    break;
                                }
                            }
                        }
                    }
                    Err(e) => {
                        Self::show_commit_message_error(&this, &e, cx);
                    }
                }

                anyhow::Ok(())
            }
            .log_err().await
        }));
    }

    fn get_fetch_options(
        &self,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Task<Option<FetchOptions>> {
        let repo = self.active_repository.clone();
        let workspace = self.workspace.clone();

        cx.spawn_in(window, async move |_, cx| {
            let repo = repo?;
            let remotes = repo
                .update(cx, |repo, _| repo.get_remotes(None))
                .ok()?
                .await
                .ok()?
                .log_err()?;

            let mut remotes: Vec<_> = remotes.into_iter().map(FetchOptions::Remote).collect();
            if remotes.len() > 1 {
                remotes.push(FetchOptions::All);
            }
            let selection = cx
                .update(|window, cx| {
                    picker_prompt::prompt(
                        "Pick which remote to fetch",
                        remotes.iter().map(|r| r.name()).collect(),
                        workspace,
                        window,
                        cx,
                    )
                })
                .ok()?
                .await?;
            remotes.get(selection).cloned()
        })
    }

    pub(crate) fn fetch(
        &mut self,
        is_fetch_all: bool,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if !self.can_push_and_pull(cx) {
            return;
        }

        let Some(repo) = self.active_repository.clone() else {
            return;
        };
        telemetry::event!("Git Fetched");
        let askpass = self.askpass_delegate("git fetch", window, cx);
        let this = cx.weak_entity();

        let fetch_options = if is_fetch_all {
            Task::ready(Some(FetchOptions::All))
        } else {
            self.get_fetch_options(window, cx)
        };

        window
            .spawn(cx, async move |cx| {
                let Some(fetch_options) = fetch_options.await else {
                    return Ok(());
                };
                let fetch = repo.update(cx, |repo, cx| {
                    repo.fetch(fetch_options.clone(), askpass, cx)
                })?;

                let remote_message = fetch.await?;
                this.update(cx, |this, cx| {
                    let action = match fetch_options {
                        FetchOptions::All => RemoteAction::Fetch(None),
                        FetchOptions::Remote(remote) => RemoteAction::Fetch(Some(remote)),
                    };
                    match remote_message {
                        Ok(remote_message) => this.show_remote_output(action, remote_message, cx),
                        Err(e) => {
                            log::error!("Error while fetching {:?}", e);
                            this.show_error_toast(action.name(), e, cx)
                        }
                    }

                    anyhow::Ok(())
                })
                .ok();
                anyhow::Ok(())
            })
            .detach_and_log_err(cx);
    }

    pub(crate) fn git_clone(&mut self, repo: String, window: &mut Window, cx: &mut Context<Self>) {
        let path = cx.prompt_for_paths(gpui::PathPromptOptions {
            files: false,
            directories: true,
            multiple: false,
            prompt: Some("Select as Repository Destination".into()),
        });

        let workspace = self.workspace.clone();

        cx.spawn_in(window, async move |this, cx| {
            let mut paths = path.await.ok()?.ok()??;
            let mut path = paths.pop()?;
            let repo_name = repo.split("/").last()?.strip_suffix(".git")?.to_owned();

            let fs = this.read_with(cx, |this, _| this.fs.clone()).ok()?;

            let prompt_answer = match fs.git_clone(&repo, path.as_path()).await {
                Ok(_) => cx.update(|window, cx| {
                    window.prompt(
                        PromptLevel::Info,
                        &format!("Git Clone: {}", repo_name),
                        None,
                        &["Add repo to project", "Open repo in new project"],
                        cx,
                    )
                }),
                Err(e) => {
                    this.update(cx, |this: &mut GitPanel, cx| {
                        let toast = StatusToast::new(e.to_string(), cx, |this, _| {
                            this.icon(ToastIcon::new(IconName::XCircle).color(Color::Error))
                                .dismiss_button(true)
                        });

                        this.workspace
                            .update(cx, |workspace, cx| {
                                workspace.toggle_status_toast(toast, cx);
                            })
                            .ok();
                    })
                    .ok()?;

                    return None;
                }
            }
            .ok()?;

            path.push(repo_name);
            match prompt_answer.await.ok()? {
                0 => {
                    workspace
                        .update(cx, |workspace, cx| {
                            workspace
                                .project()
                                .update(cx, |project, cx| {
                                    project.create_worktree(path.as_path(), true, cx)
                                })
                                .detach();
                        })
                        .ok();
                }
                1 => {
                    workspace
                        .update(cx, move |workspace, cx| {
                            workspace::open_new(
                                Default::default(),
                                workspace.app_state().clone(),
                                cx,
                                move |workspace, _, cx| {
                                    cx.activate(true);
                                    workspace
                                        .project()
                                        .update(cx, |project, cx| {
                                            project.create_worktree(&path, true, cx)
                                        })
                                        .detach();
                                },
                            )
                            .detach();
                        })
                        .ok();
                }
                _ => {}
            }

            Some(())
        })
        .detach();
    }

    pub(crate) fn git_init(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let worktrees = self
            .project
            .read(cx)
            .visible_worktrees(cx)
            .collect::<Vec<_>>();

        let worktree = if worktrees.len() == 1 {
            Task::ready(Some(worktrees.first().unwrap().clone()))
        } else if worktrees.is_empty() {
            let result = window.prompt(
                PromptLevel::Warning,
                "Unable to initialize a git repository",
                Some("Open a directory first"),
                &["Ok"],
                cx,
            );
            cx.background_executor()
                .spawn(async move {
                    result.await.ok();
                })
                .detach();
            return;
        } else {
            let worktree_directories = worktrees
                .iter()
                .map(|worktree| worktree.read(cx).abs_path())
                .map(|worktree_abs_path| {
                    if let Ok(path) = worktree_abs_path.strip_prefix(util::paths::home_dir()) {
                        Path::new("~")
                            .join(path)
                            .to_string_lossy()
                            .to_string()
                            .into()
                    } else {
                        worktree_abs_path.to_string_lossy().into_owned().into()
                    }
                })
                .collect_vec();
            let prompt = picker_prompt::prompt(
                "Where would you like to initialize this git repository?",
                worktree_directories,
                self.workspace.clone(),
                window,
                cx,
            );

            cx.spawn(async move |_, _| prompt.await.map(|ix| worktrees[ix].clone()))
        };

        cx.spawn_in(window, async move |this, cx| {
            let worktree = match worktree.await {
                Some(worktree) => worktree,
                None => {
                    return;
                }
            };

            let Ok(result) = this.update(cx, |this, cx| {
                let fallback_branch_name = GitPanelSettings::get_global(cx)
                    .fallback_branch_name
                    .clone();
                this.project.read(cx).git_init(
                    worktree.read(cx).abs_path(),
                    fallback_branch_name,
                    cx,
                )
            }) else {
                return;
            };

            let result = result.await;

            this.update_in(cx, |this, _, cx| match result {
                Ok(()) => {}
                Err(e) => this.show_error_toast("init", e, cx),
            })
            .ok();
        })
        .detach();
    }

    pub(crate) fn pull(&mut self, rebase: bool, window: &mut Window, cx: &mut Context<Self>) {
        if !self.can_push_and_pull(cx) {
            return;
        }
        let Some(repo) = self.active_repository.clone() else {
            return;
        };
        let Some(branch) = repo.read(cx).branch.as_ref() else {
            return;
        };
        telemetry::event!("Git Pulled");
        let branch = branch.clone();
        let remote = self.get_remote(false, window, cx);
        cx.spawn_in(window, async move |this, cx| {
            let remote = match remote.await {
                Ok(Some(remote)) => remote,
                Ok(None) => {
                    return Ok(());
                }
                Err(e) => {
                    log::error!("Failed to get current remote: {}", e);
                    this.update(cx, |this, cx| this.show_error_toast("pull", e, cx))
                        .ok();
                    return Ok(());
                }
            };

            let askpass = this.update_in(cx, |this, window, cx| {
                this.askpass_delegate(format!("git pull {}", remote.name), window, cx)
            })?;

            let branch_name = branch
                .upstream
                .is_none()
                .then(|| branch.name().to_owned().into());

            let pull = repo.update(cx, |repo, cx| {
                repo.pull(branch_name, remote.name.clone(), rebase, askpass, cx)
            })?;

            let remote_message = pull.await?;

            let action = RemoteAction::Pull(remote);
            this.update(cx, |this, cx| match remote_message {
                Ok(remote_message) => this.show_remote_output(action, remote_message, cx),
                Err(e) => {
                    log::error!("Error while pulling {:?}", e);
                    this.show_error_toast(action.name(), e, cx)
                }
            })
            .ok();

            anyhow::Ok(())
        })
        .detach_and_log_err(cx);
    }

    pub(crate) fn push(
        &mut self,
        force_push: bool,
        select_remote: bool,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        if !self.can_push_and_pull(cx) {
            return;
        }
        let Some(repo) = self.active_repository.clone() else {
            return;
        };
        let Some(branch) = repo.read(cx).branch.as_ref() else {
            return;
        };
        telemetry::event!("Git Pushed");
        let branch = branch.clone();

        let options = if force_push {
            Some(PushOptions::Force)
        } else {
            match branch.upstream {
                Some(Upstream {
                    tracking: UpstreamTracking::Gone,
                    ..
                })
                | None => Some(PushOptions::SetUpstream),
                _ => None,
            }
        };
        let remote = self.get_remote(select_remote, window, cx);

        cx.spawn_in(window, async move |this, cx| {
            let remote = match remote.await {
                Ok(Some(remote)) => remote,
                Ok(None) => {
                    return Ok(());
                }
                Err(e) => {
                    log::error!("Failed to get current remote: {}", e);
                    this.update(cx, |this, cx| this.show_error_toast("push", e, cx))
                        .ok();
                    return Ok(());
                }
            };

            let askpass_delegate = this.update_in(cx, |this, window, cx| {
                this.askpass_delegate(format!("git push {}", remote.name), window, cx)
            })?;

            let push = repo.update(cx, |repo, cx| {
                repo.push(
                    branch.name().to_owned().into(),
                    remote.name.clone(),
                    options,
                    askpass_delegate,
                    cx,
                )
            })?;

            let remote_output = push.await?;

            let action = RemoteAction::Push(branch.name().to_owned().into(), remote);
            this.update(cx, |this, cx| match remote_output {
                Ok(remote_message) => this.show_remote_output(action, remote_message, cx),
                Err(e) => {
                    log::error!("Error while pushing {:?}", e);
                    this.show_error_toast(action.name(), e, cx)
                }
            })?;

            anyhow::Ok(())
        })
        .detach_and_log_err(cx);
    }

    fn askpass_delegate(
        &self,
        operation: impl Into<SharedString>,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> AskPassDelegate {
        let this = cx.weak_entity();
        let operation = operation.into();
        let window = window.window_handle();
        AskPassDelegate::new(&mut cx.to_async(), move |prompt, tx, cx| {
            window
                .update(cx, |_, window, cx| {
                    this.update(cx, |this, cx| {
                        this.workspace.update(cx, |workspace, cx| {
                            workspace.toggle_modal(window, cx, |window, cx| {
                                AskPassModal::new(operation.clone(), prompt.into(), tx, window, cx)
                            });
                        })
                    })
                })
                .ok();
        })
    }

    fn can_push_and_pull(&self, cx: &App) -> bool {
        !self.project.read(cx).is_via_collab()
    }

    fn get_remote(
        &mut self,
        always_select: bool,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> impl Future<Output = anyhow::Result<Option<Remote>>> + use<> {
        let repo = self.active_repository.clone();
        let workspace = self.workspace.clone();
        let mut cx = window.to_async(cx);

        async move {
            let repo = repo.context("No active repository")?;
            let current_remotes: Vec<Remote> = repo
                .update(&mut cx, |repo, _| {
                    let current_branch = if always_select {
                        None
                    } else {
                        let current_branch = repo.branch.as_ref().context("No active branch")?;
                        Some(current_branch.name().to_string())
                    };
                    anyhow::Ok(repo.get_remotes(current_branch))
                })??
                .await??;

            let current_remotes: Vec<_> = current_remotes
                .into_iter()
                .map(|remotes| remotes.name)
                .collect();
            let selection = cx
                .update(|window, cx| {
                    picker_prompt::prompt(
                        "Pick which remote to push to",
                        current_remotes.clone(),
                        workspace,
                        window,
                        cx,
                    )
                })?
                .await;

            Ok(selection.map(|selection| Remote {
                name: current_remotes[selection].clone(),
            }))
        }
    }

    pub fn load_local_committer(&mut self, cx: &Context<Self>) {
        if self.local_committer_task.is_none() {
            self.local_committer_task = Some(cx.spawn(async move |this, cx| {
                let committer = get_git_committer(cx).await;
                this.update(cx, |this, cx| {
                    this.local_committer = Some(committer);
                    cx.notify()
                })
                .ok();
            }));
        }
    }

    fn potential_co_authors(&self, cx: &App) -> Vec<(String, String)> {
        let mut new_co_authors = Vec::new();
        let project = self.project.read(cx);

        let Some(room) = self
            .workspace
            .upgrade()
            .and_then(|workspace| workspace.read(cx).active_call()?.read(cx).room().cloned())
        else {
            return Vec::default();
        };

        let room = room.read(cx);

        for (peer_id, collaborator) in project.collaborators() {
            if collaborator.is_host {
                continue;
            }

            let Some(participant) = room.remote_participant_for_peer_id(*peer_id) else {
                continue;
            };
            if !participant.can_write() {
                continue;
            }
            if let Some(email) = &collaborator.committer_email {
                let name = collaborator
                    .committer_name
                    .clone()
                    .or_else(|| participant.user.name.clone())
                    .unwrap_or_else(|| participant.user.github_login.clone().to_string());
                new_co_authors.push((name.clone(), email.clone()))
            }
        }
        if !project.is_local()
            && !project.is_read_only(cx)
            && let Some(local_committer) = self.local_committer(room, cx)
        {
            new_co_authors.push(local_committer);
        }
        new_co_authors
    }

    fn local_committer(&self, room: &call::Room, cx: &App) -> Option<(String, String)> {
        let user = room.local_participant_user(cx)?;
        let committer = self.local_committer.as_ref()?;
        let email = committer.email.clone()?;
        let name = committer
            .name
            .clone()
            .or_else(|| user.name.clone())
            .unwrap_or_else(|| user.github_login.clone().to_string());
        Some((name, email))
    }

    fn toggle_fill_co_authors(
        &mut self,
        _: &ToggleFillCoAuthors,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        self.add_coauthors = !self.add_coauthors;
        cx.notify();
    }

    fn toggle_sort_by_path(
        &mut self,
        _: &ToggleSortByPath,
        _: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let current_setting = GitPanelSettings::get_global(cx).sort_by_path;
        if let Some(workspace) = self.workspace.upgrade() {
            let workspace = workspace.read(cx);
            let fs = workspace.app_state().fs.clone();
            cx.update_global::<SettingsStore, _>(|store, _cx| {
                store.update_settings_file(fs, move |settings, _cx| {
                    settings.git_panel.get_or_insert_default().sort_by_path =
                        Some(!current_setting);
                });
            });
        }
    }

    fn fill_co_authors(&mut self, message: &mut String, cx: &mut Context<Self>) {
        const CO_AUTHOR_PREFIX: &str = "Co-authored-by: ";

        let existing_text = message.to_ascii_lowercase();
        let lowercase_co_author_prefix = CO_AUTHOR_PREFIX.to_lowercase();
        let mut ends_with_co_authors = false;
        let existing_co_authors = existing_text
            .lines()
            .filter_map(|line| {
                let line = line.trim();
                if line.starts_with(&lowercase_co_author_prefix) {
                    ends_with_co_authors = true;
                    Some(line)
                } else {
                    ends_with_co_authors = false;
                    None
                }
            })
            .collect::<HashSet<_>>();

        let new_co_authors = self
            .potential_co_authors(cx)
            .into_iter()
            .filter(|(_, email)| {
                !existing_co_authors
                    .iter()
                    .any(|existing| existing.contains(email.as_str()))
            })
            .collect::<Vec<_>>();

        if new_co_authors.is_empty() {
            return;
        }

        if !ends_with_co_authors {
            message.push('\n');
        }
        for (name, email) in new_co_authors {
            message.push('\n');
            message.push_str(CO_AUTHOR_PREFIX);
            message.push_str(&name);
            message.push_str(" <");
            message.push_str(&email);
            message.push('>');
        }
        message.push('\n');
    }

    fn schedule_update(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let handle = cx.entity().downgrade();
        self.reopen_commit_buffer(window, cx);
        self.update_visible_entries_task = cx.spawn_in(window, async move |_, cx| {
            cx.background_executor().timer(UPDATE_DEBOUNCE).await;
            if let Some(git_panel) = handle.upgrade() {
                git_panel
                    .update_in(cx, |git_panel, window, cx| {
                        git_panel.update_visible_entries(window, cx);
                    })
                    .ok();
            }
        });
    }

    fn reopen_commit_buffer(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let Some(active_repo) = self.active_repository.as_ref() else {
            return;
        };
        let load_buffer = active_repo.update(cx, |active_repo, cx| {
            let project = self.project.read(cx);
            active_repo.open_commit_buffer(
                Some(project.languages().clone()),
                project.buffer_store().clone(),
                cx,
            )
        });

        cx.spawn_in(window, async move |git_panel, cx| {
            let buffer = load_buffer.await?;
            git_panel.update_in(cx, |git_panel, window, cx| {
                if git_panel
                    .commit_editor
                    .read(cx)
                    .buffer()
                    .read(cx)
                    .as_singleton()
                    .as_ref()
                    != Some(&buffer)
                {
                    git_panel.commit_editor = cx.new(|cx| {
                        commit_message_editor(
                            buffer,
                            git_panel.suggest_commit_message(cx).map(SharedString::from),
                            git_panel.project.clone(),
                            true,
                            window,
                            cx,
                        )
                    });
                }
            })
        })
        .detach_and_log_err(cx);
    }

    fn update_visible_entries(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let path_style = self.project.read(cx).path_style(cx);
        let bulk_staging = self.bulk_staging.take();
        let last_staged_path_prev_index = bulk_staging
            .as_ref()
            .and_then(|op| self.entry_by_path(&op.anchor, cx));

        self.entries.clear();
        self.single_staged_entry.take();
        self.single_tracked_entry.take();
        self.conflicted_count = 0;
        self.conflicted_staged_count = 0;
        self.new_count = 0;
        self.tracked_count = 0;
        self.new_staged_count = 0;
        self.tracked_staged_count = 0;
        self.entry_count = 0;

        let sort_by_path = GitPanelSettings::get_global(cx).sort_by_path;

        let mut changed_entries = Vec::new();
        let mut new_entries = Vec::new();
        let mut conflict_entries = Vec::new();
        let mut single_staged_entry = None;
        let mut staged_count = 0;
        let mut max_width_item: Option<(RepoPath, usize)> = None;

        let Some(repo) = self.active_repository.as_ref() else {
            // Just clear entries if no repository is active.
            cx.notify();
            return;
        };

        let repo = repo.read(cx);

        self.stash_entries = repo.cached_stash();

        for entry in repo.cached_status() {
            let is_conflict = repo.had_conflict_on_last_merge_head_change(&entry.repo_path);
            let is_new = entry.status.is_created();
            let staging = entry.status.staging();

            if let Some(pending) = repo.pending_ops_for_path(&entry.repo_path)
                && pending
                    .ops
                    .iter()
                    .any(|op| op.git_status == pending_op::GitStatus::Reverted && op.finished())
            {
                continue;
            }

            let entry = GitStatusEntry {
                repo_path: entry.repo_path.clone(),
                status: entry.status,
                staging,
            };

            if staging.has_staged() {
                staged_count += 1;
                single_staged_entry = Some(entry.clone());
            }

            let width_estimate = Self::item_width_estimate(
                entry.parent_dir(path_style).map(|s| s.len()).unwrap_or(0),
                entry.display_name(path_style).len(),
            );

            match max_width_item.as_mut() {
                Some((repo_path, estimate)) => {
                    if width_estimate > *estimate {
                        *repo_path = entry.repo_path.clone();
                        *estimate = width_estimate;
                    }
                }
                None => max_width_item = Some((entry.repo_path.clone(), width_estimate)),
            }

            if sort_by_path {
                changed_entries.push(entry);
            } else if is_conflict {
                conflict_entries.push(entry);
            } else if is_new {
                new_entries.push(entry);
            } else {
                changed_entries.push(entry);
            }
        }

        if conflict_entries.is_empty() {
            if staged_count == 1
                && let Some(entry) = single_staged_entry.as_ref()
            {
                if let Some(ops) = repo.pending_ops_for_path(&entry.repo_path) {
                    if ops.staged() {
                        self.single_staged_entry = single_staged_entry;
                    }
                } else {
                    self.single_staged_entry = single_staged_entry;
                }
            } else if repo.pending_ops_summary().item_summary.staging_count == 1
                && let Some(ops) = repo.pending_ops().find(|ops| ops.staging())
            {
                self.single_staged_entry =
                    repo.status_for_path(&ops.repo_path)
                        .map(|status| GitStatusEntry {
                            repo_path: ops.repo_path.clone(),
                            status: status.status,
                            staging: StageStatus::Staged,
                        });
            }
        }

        if conflict_entries.is_empty() && changed_entries.len() == 1 {
            self.single_tracked_entry = changed_entries.first().cloned();
        }

        if !conflict_entries.is_empty() {
            self.entries.push(GitListEntry::Header(GitHeaderEntry {
                header: Section::Conflict,
            }));
            self.entries
                .extend(conflict_entries.into_iter().map(GitListEntry::Status));
        }

        if !changed_entries.is_empty() {
            if !sort_by_path {
                self.entries.push(GitListEntry::Header(GitHeaderEntry {
                    header: Section::Tracked,
                }));
            }
            self.entries
                .extend(changed_entries.into_iter().map(GitListEntry::Status));
        }
        if !new_entries.is_empty() {
            self.entries.push(GitListEntry::Header(GitHeaderEntry {
                header: Section::New,
            }));
            self.entries
                .extend(new_entries.into_iter().map(GitListEntry::Status));
        }

        if let Some((repo_path, _)) = max_width_item {
            self.max_width_item_index = self.entries.iter().position(|entry| match entry {
                GitListEntry::Status(git_status_entry) => git_status_entry.repo_path == repo_path,
                GitListEntry::Header(_) => false,
            });
        }

        self.update_counts(repo);

        let bulk_staging_anchor_new_index = bulk_staging
            .as_ref()
            .filter(|op| op.repo_id == repo.id)
            .and_then(|op| self.entry_by_path(&op.anchor, cx));
        if bulk_staging_anchor_new_index == last_staged_path_prev_index
            && let Some(index) = bulk_staging_anchor_new_index
            && let Some(entry) = self.entries.get(index)
            && let Some(entry) = entry.status_entry()
            && repo
                .pending_ops_for_path(&entry.repo_path)
                .map(|ops| ops.staging() || ops.staged())
                .unwrap_or(entry.staging.has_staged())
        {
            self.bulk_staging = bulk_staging;
        }

        self.select_first_entry_if_none(cx);

        let suggested_commit_message = self.suggest_commit_message(cx);
        let placeholder_text = suggested_commit_message.unwrap_or("Enter commit message".into());

        self.commit_editor.update(cx, |editor, cx| {
            editor.set_placeholder_text(&placeholder_text, window, cx)
        });

        cx.notify();
    }

    fn header_state(&self, header_type: Section) -> ToggleState {
        let (staged_count, count) = match header_type {
            Section::New => (self.new_staged_count, self.new_count),
            Section::Tracked => (self.tracked_staged_count, self.tracked_count),
            Section::Conflict => (self.conflicted_staged_count, self.conflicted_count),
        };
        if staged_count == 0 {
            ToggleState::Unselected
        } else if count == staged_count {
            ToggleState::Selected
        } else {
            ToggleState::Indeterminate
        }
    }

    fn update_counts(&mut self, repo: &Repository) {
        self.show_placeholders = false;
        self.conflicted_count = 0;
        self.conflicted_staged_count = 0;
        self.new_count = 0;
        self.tracked_count = 0;
        self.new_staged_count = 0;
        self.tracked_staged_count = 0;
        self.entry_count = 0;
        for entry in &self.entries {
            let Some(status_entry) = entry.status_entry() else {
                continue;
            };
            self.entry_count += 1;
            let is_staging_or_staged = repo
                .pending_ops_for_path(&status_entry.repo_path)
                .map(|ops| ops.staging() || ops.staged())
                .unwrap_or(status_entry.staging.has_staged());
            if repo.had_conflict_on_last_merge_head_change(&status_entry.repo_path) {
                self.conflicted_count += 1;
                if is_staging_or_staged {
                    self.conflicted_staged_count += 1;
                }
            } else if status_entry.status.is_created() {
                self.new_count += 1;
                if is_staging_or_staged {
                    self.new_staged_count += 1;
                }
            } else {
                self.tracked_count += 1;
                if is_staging_or_staged {
                    self.tracked_staged_count += 1;
                }
            }
        }
    }

    pub(crate) fn has_staged_changes(&self) -> bool {
        self.tracked_staged_count > 0
            || self.new_staged_count > 0
            || self.conflicted_staged_count > 0
    }

    pub(crate) fn has_unstaged_changes(&self) -> bool {
        self.tracked_count > self.tracked_staged_count
            || self.new_count > self.new_staged_count
            || self.conflicted_count > self.conflicted_staged_count
    }

    fn has_tracked_changes(&self) -> bool {
        self.tracked_count > 0
    }

    pub fn has_unstaged_conflicts(&self) -> bool {
        self.conflicted_count > 0 && self.conflicted_count != self.conflicted_staged_count
    }

    fn show_error_toast(&self, action: impl Into<SharedString>, e: anyhow::Error, cx: &mut App) {
        let action = action.into();
        let Some(workspace) = self.workspace.upgrade() else {
            return;
        };

        let message = e.to_string().trim().to_string();
        if message
            .matches(git::repository::REMOTE_CANCELLED_BY_USER)
            .next()
            .is_some()
        { // Hide the cancelled by user message
        } else {
            workspace.update(cx, |workspace, cx| {
                let workspace_weak = cx.weak_entity();
                let toast = StatusToast::new(format!("git {} failed", action), cx, |this, _cx| {
                    this.icon(ToastIcon::new(IconName::XCircle).color(Color::Error))
                        .action("View Log", move |window, cx| {
                            let message = message.clone();
                            let action = action.clone();
                            workspace_weak
                                .update(cx, move |workspace, cx| {
                                    Self::open_output(action, workspace, &message, window, cx)
                                })
                                .ok();
                        })
                });
                workspace.toggle_status_toast(toast, cx)
            });
        }
    }

    fn show_commit_message_error<E>(weak_this: &WeakEntity<Self>, err: &E, cx: &mut AsyncApp)
    where
        E: std::fmt::Debug + std::fmt::Display,
    {
        if let Ok(Some(workspace)) = weak_this.update(cx, |this, _cx| this.workspace.upgrade()) {
            let _ = workspace.update(cx, |workspace, cx| {
                struct CommitMessageError;
                let notification_id = NotificationId::unique::<CommitMessageError>();
                workspace.show_notification(notification_id, cx, |cx| {
                    cx.new(|cx| {
                        ErrorMessagePrompt::new(
                            format!("Failed to generate commit message: {err}"),
                            cx,
                        )
                    })
                });
            });
        }
    }

    fn show_remote_output(&self, action: RemoteAction, info: RemoteCommandOutput, cx: &mut App) {
        let Some(workspace) = self.workspace.upgrade() else {
            return;
        };

        workspace.update(cx, |workspace, cx| {
            let SuccessMessage { message, style } = remote_output::format_output(&action, info);
            let workspace_weak = cx.weak_entity();
            let operation = action.name();

            let status_toast = StatusToast::new(message, cx, move |this, _cx| {
                use remote_output::SuccessStyle::*;
                match style {
                    Toast => this.icon(ToastIcon::new(IconName::GitBranchAlt).color(Color::Muted)),
                    ToastWithLog { output } => this
                        .icon(ToastIcon::new(IconName::GitBranchAlt).color(Color::Muted))
                        .action("View Log", move |window, cx| {
                            let output = output.clone();
                            let output =
                                format!("stdout:\n{}\nstderr:\n{}", output.stdout, output.stderr);
                            workspace_weak
                                .update(cx, move |workspace, cx| {
                                    Self::open_output(operation, workspace, &output, window, cx)
                                })
                                .ok();
                        }),
                    PushPrLink { text, link } => this
                        .icon(ToastIcon::new(IconName::GitBranchAlt).color(Color::Muted))
                        .action(text, move |_, cx| cx.open_url(&link)),
                }
            });
            workspace.toggle_status_toast(status_toast, cx)
        });
    }

    fn open_output(
        operation: impl Into<SharedString>,
        workspace: &mut Workspace,
        output: &str,
        window: &mut Window,
        cx: &mut Context<Workspace>,
    ) {
        let operation = operation.into();
        let buffer = cx.new(|cx| Buffer::local(output, cx));
        buffer.update(cx, |buffer, cx| {
            buffer.set_capability(language::Capability::ReadOnly, cx);
        });
        let editor = cx.new(|cx| {
            let mut editor = Editor::for_buffer(buffer, None, window, cx);
            editor.buffer().update(cx, |buffer, cx| {
                buffer.set_title(format!("Output from git {operation}"), cx);
            });
            editor.set_read_only(true);
            editor
        });

        workspace.add_item_to_center(Box::new(editor), window, cx);
    }

    pub fn can_commit(&self) -> bool {
        (self.has_staged_changes() || self.has_tracked_changes()) && !self.has_unstaged_conflicts()
    }

    pub fn can_stage_all(&self) -> bool {
        self.has_unstaged_changes()
    }

    pub fn can_unstage_all(&self) -> bool {
        self.has_staged_changes()
    }

    // eventually we'll need to take depth into account here
    // if we add a tree view
    fn item_width_estimate(path: usize, file_name: usize) -> usize {
        path + file_name
    }

    fn render_overflow_menu(&self, id: impl Into<ElementId>) -> impl IntoElement {
        let focus_handle = self.focus_handle.clone();
        let has_tracked_changes = self.has_tracked_changes();
        let has_staged_changes = self.has_staged_changes();
        let has_unstaged_changes = self.has_unstaged_changes();
        let has_new_changes = self.new_count > 0;
        let has_stash_items = self.stash_entries.entries.len() > 0;

        PopoverMenu::new(id.into())
            .trigger(
                IconButton::new("overflow-menu-trigger", IconName::Ellipsis)
                    .icon_size(IconSize::Small)
                    .icon_color(Color::Muted),
            )
            .menu(move |window, cx| {
                Some(git_panel_context_menu(
                    focus_handle.clone(),
                    GitMenuState {
                        has_tracked_changes,
                        has_staged_changes,
                        has_unstaged_changes,
                        has_new_changes,
                        sort_by_path: GitPanelSettings::get_global(cx).sort_by_path,
                        has_stash_items,
                    },
                    window,
                    cx,
                ))
            })
            .anchor(Corner::TopRight)
    }

    pub(crate) fn render_generate_commit_message_button(
        &self,
        cx: &Context<Self>,
    ) -> Option<AnyElement> {
        if !agent_settings::AgentSettings::get_global(cx).enabled(cx)
            || LanguageModelRegistry::read_global(cx)
                .commit_message_model()
                .is_none()
        {
            return None;
        }

        if self.generate_commit_message_task.is_some() {
            return Some(
                h_flex()
                    .gap_1()
                    .child(
                        Icon::new(IconName::ArrowCircle)
                            .size(IconSize::XSmall)
                            .color(Color::Info)
                            .with_rotate_animation(2),
                    )
                    .child(
                        Label::new("Generating Commit...")
                            .size(LabelSize::Small)
                            .color(Color::Muted),
                    )
                    .into_any_element(),
            );
        }

        let can_commit = self.can_commit();
        let editor_focus_handle = self.commit_editor.focus_handle(cx);
        Some(
            IconButton::new("generate-commit-message", IconName::AiEdit)
                .shape(ui::IconButtonShape::Square)
                .icon_color(Color::Muted)
                .tooltip(move |_window, cx| {
                    if can_commit {
                        Tooltip::for_action_in(
                            "Generate Commit Message",
                            &git::GenerateCommitMessage,
                            &editor_focus_handle,
                            cx,
                        )
                    } else {
                        Tooltip::simple("No changes to commit", cx)
                    }
                })
                .disabled(!can_commit)
                .on_click(cx.listener(move |this, _event, _window, cx| {
                    this.generate_commit_message(cx);
                }))
                .into_any_element(),
        )
    }

    pub(crate) fn render_co_authors(&self, cx: &Context<Self>) -> Option<AnyElement> {
        let potential_co_authors = self.potential_co_authors(cx);

        let (tooltip_label, icon) = if self.add_coauthors {
            ("Remove co-authored-by", IconName::Person)
        } else {
            ("Add co-authored-by", IconName::UserCheck)
        };

        if potential_co_authors.is_empty() {
            None
        } else {
            Some(
                IconButton::new("co-authors", icon)
                    .shape(ui::IconButtonShape::Square)
                    .icon_color(Color::Disabled)
                    .selected_icon_color(Color::Selected)
                    .toggle_state(self.add_coauthors)
                    .tooltip(move |_, cx| {
                        let title = format!(
                            "{}:{}{}",
                            tooltip_label,
                            if potential_co_authors.len() == 1 {
                                ""
                            } else {
                                "\n"
                            },
                            potential_co_authors
                                .iter()
                                .map(|(name, email)| format!(" {} <{}>", name, email))
                                .join("\n")
                        );
                        Tooltip::simple(title, cx)
                    })
                    .on_click(cx.listener(|this, _, _, cx| {
                        this.add_coauthors = !this.add_coauthors;
                        cx.notify();
                    }))
                    .into_any_element(),
            )
        }
    }

    fn render_git_commit_menu(
        &self,
        id: impl Into<ElementId>,
        keybinding_target: Option<FocusHandle>,
        cx: &mut Context<Self>,
    ) -> impl IntoElement {
        PopoverMenu::new(id.into())
            .trigger(
                ui::ButtonLike::new_rounded_right("commit-split-button-right")
                    .layer(ui::ElevationIndex::ModalSurface)
                    .size(ButtonSize::None)
                    .child(
                        h_flex()
                            .px_1()
                            .h_full()
                            .justify_center()
                            .border_l_1()
                            .border_color(cx.theme().colors().border)
                            .child(Icon::new(IconName::ChevronDown).size(IconSize::XSmall)),
                    ),
            )
            .menu({
                let git_panel = cx.entity();
                let has_previous_commit = self.head_commit(cx).is_some();
                let amend = self.amend_pending();
                let signoff = self.signoff_enabled;

                move |window, cx| {
                    Some(ContextMenu::build(window, cx, |context_menu, _, _| {
                        context_menu
                            .when_some(keybinding_target.clone(), |el, keybinding_target| {
                                el.context(keybinding_target)
                            })
                            .when(has_previous_commit, |this| {
                                this.toggleable_entry(
                                    "Amend",
                                    amend,
                                    IconPosition::Start,
                                    Some(Box::new(Amend)),
                                    {
                                        let git_panel = git_panel.downgrade();
                                        move |_, cx| {
                                            git_panel
                                                .update(cx, |git_panel, cx| {
                                                    git_panel.toggle_amend_pending(cx);
                                                })
                                                .ok();
                                        }
                                    },
                                )
                            })
                            .toggleable_entry(
                                "Signoff",
                                signoff,
                                IconPosition::Start,
                                Some(Box::new(Signoff)),
                                move |window, cx| window.dispatch_action(Box::new(Signoff), cx),
                            )
                    }))
                }
            })
            .anchor(Corner::TopRight)
    }

    pub fn configure_commit_button(&self, cx: &mut Context<Self>) -> (bool, &'static str) {
        if self.has_unstaged_conflicts() {
            (false, "You must resolve conflicts before committing")
        } else if !self.has_staged_changes() && !self.has_tracked_changes() && !self.amend_pending {
            (false, "No changes to commit")
        } else if self.pending_commit.is_some() {
            (false, "Commit in progress")
        } else if !self.has_commit_message(cx) {
            (false, "No commit message")
        } else if !self.has_write_access(cx) {
            (false, "You do not have write access to this project")
        } else {
            (true, self.commit_button_title())
        }
    }

    pub fn commit_button_title(&self) -> &'static str {
        if self.amend_pending {
            if self.has_staged_changes() {
                "Amend"
            } else if self.has_tracked_changes() {
                "Amend Tracked"
            } else {
                "Amend"
            }
        } else if self.has_staged_changes() {
            "Commit"
        } else {
            "Commit Tracked"
        }
    }

    fn expand_commit_editor(
        &mut self,
        _: &git::ExpandCommitEditor,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let workspace = self.workspace.clone();
        window.defer(cx, move |window, cx| {
            workspace
                .update(cx, |workspace, cx| {
                    CommitModal::toggle(workspace, None, window, cx)
                })
                .ok();
        })
    }

    fn render_panel_header(
        &self,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Option<impl IntoElement> {
        self.active_repository.as_ref()?;

        let (text, action, stage, tooltip) =
            if self.total_staged_count() == self.entry_count && self.entry_count > 0 {
                ("Unstage All", UnstageAll.boxed_clone(), false, "git reset")
            } else {
                ("Stage All", StageAll.boxed_clone(), true, "git add --all")
            };

        let change_string = match self.entry_count {
            0 => "No Changes".to_string(),
            1 => "1 Change".to_string(),
            _ => format!("{} Changes", self.entry_count),
        };

        Some(
            self.panel_header_container(window, cx)
                .px_2()
                .justify_between()
                .child(
                    panel_button(change_string)
                        .color(Color::Muted)
                        .tooltip(Tooltip::for_action_title_in(
                            "Open Diff",
                            &Diff,
                            &self.focus_handle,
                        ))
                        .on_click(|_, _, cx| {
                            cx.defer(|cx| {
                                cx.dispatch_action(&Diff);
                            })
                        }),
                )
                .child(
                    h_flex()
                        .gap_1()
                        .child(self.render_overflow_menu("overflow_menu"))
                        .child(
                            panel_filled_button(text)
                                .tooltip(Tooltip::for_action_title_in(
                                    tooltip,
                                    action.as_ref(),
                                    &self.focus_handle,
                                ))
                                .disabled(self.entry_count == 0)
                                .on_click({
                                    let git_panel = cx.weak_entity();
                                    move |_, _, cx| {
                                        git_panel
                                            .update(cx, |git_panel, cx| {
                                                git_panel.change_all_files_stage(stage, cx);
                                            })
                                            .ok();
                                    }
                                }),
                        ),
                ),
        )
    }

    pub(crate) fn render_remote_button(&self, cx: &mut Context<Self>) -> Option<AnyElement> {
        let branch = self.active_repository.as_ref()?.read(cx).branch.clone();
        if !self.can_push_and_pull(cx) {
            return None;
        }
        Some(
            h_flex()
                .gap_1()
                .flex_shrink_0()
                .when_some(branch, |this, branch| {
                    let focus_handle = Some(self.focus_handle(cx));

                    this.children(render_remote_button(
                        "remote-button",
                        &branch,
                        focus_handle,
                        true,
                    ))
                })
                .into_any_element(),
        )
    }

    pub fn render_footer(
        &self,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Option<impl IntoElement> {
        let active_repository = self.active_repository.clone()?;
        let panel_editor_style = panel_editor_style(true, window, cx);

        let enable_coauthors = self.render_co_authors(cx);

        let editor_focus_handle = self.commit_editor.focus_handle(cx);
        let expand_tooltip_focus_handle = editor_focus_handle;

        let branch = active_repository.read(cx).branch.clone();
        let head_commit = active_repository.read(cx).head_commit.clone();

        let footer_size = px(32.);
        let gap = px(9.0);
        let max_height = panel_editor_style
            .text
            .line_height_in_pixels(window.rem_size())
            * MAX_PANEL_EDITOR_LINES
            + gap;

        let git_panel = cx.entity();
        let display_name = SharedString::from(Arc::from(
            active_repository
                .read(cx)
                .display_name()
                .trim_end_matches("/"),
        ));
        let editor_is_long = self.commit_editor.update(cx, |editor, cx| {
            editor.max_point(cx).row().0 >= MAX_PANEL_EDITOR_LINES as u32
        });

        let footer = v_flex()
            .child(PanelRepoFooter::new(
                display_name,
                branch,
                head_commit,
                Some(git_panel),
            ))
            .child(
                panel_editor_container(window, cx)
                    .id("commit-editor-container")
                    .relative()
                    .w_full()
                    .h(max_height + footer_size)
                    .border_t_1()
                    .border_color(cx.theme().colors().border)
                    .cursor_text()
                    .on_click(cx.listener(move |this, _: &ClickEvent, window, cx| {
                        window.focus(&this.commit_editor.focus_handle(cx));
                    }))
                    .child(
                        h_flex()
                            .id("commit-footer")
                            .border_t_1()
                            .when(editor_is_long, |el| {
                                el.border_color(cx.theme().colors().border_variant)
                            })
                            .absolute()
                            .bottom_0()
                            .left_0()
                            .w_full()
                            .px_2()
                            .h(footer_size)
                            .flex_none()
                            .justify_between()
                            .child(
                                self.render_generate_commit_message_button(cx)
                                    .unwrap_or_else(|| div().into_any_element()),
                            )
                            .child(
                                h_flex()
                                    .gap_0p5()
                                    .children(enable_coauthors)
                                    .child(self.render_commit_button(cx)),
                            ),
                    )
                    .child(
                        div()
                            .pr_2p5()
                            .on_action(|&editor::actions::MoveUp, _, cx| {
                                cx.stop_propagation();
                            })
                            .on_action(|&editor::actions::MoveDown, _, cx| {
                                cx.stop_propagation();
                            })
                            .child(EditorElement::new(&self.commit_editor, panel_editor_style)),
                    )
                    .child(
                        h_flex()
                            .absolute()
                            .top_2()
                            .right_2()
                            .opacity(0.5)
                            .hover(|this| this.opacity(1.0))
                            .child(
                                panel_icon_button("expand-commit-editor", IconName::Maximize)
                                    .icon_size(IconSize::Small)
                                    .size(ui::ButtonSize::Default)
                                    .tooltip(move |_window, cx| {
                                        Tooltip::for_action_in(
                                            "Open Commit Modal",
                                            &git::ExpandCommitEditor,
                                            &expand_tooltip_focus_handle,
                                            cx,
                                        )
                                    })
                                    .on_click(cx.listener({
                                        move |_, _, window, cx| {
                                            window.dispatch_action(
                                                git::ExpandCommitEditor.boxed_clone(),
                                                cx,
                                            )
                                        }
                                    })),
                            ),
                    ),
            );

        Some(footer)
    }

    fn render_commit_button(&self, cx: &mut Context<Self>) -> impl IntoElement {
        let (can_commit, tooltip) = self.configure_commit_button(cx);
        let title = self.commit_button_title();
        let commit_tooltip_focus_handle = self.commit_editor.focus_handle(cx);
        let amend = self.amend_pending();
        let signoff = self.signoff_enabled;

        let label_color = if self.pending_commit.is_some() {
            Color::Disabled
        } else {
            Color::Default
        };

        div()
            .id("commit-wrapper")
            .on_hover(cx.listener(move |this, hovered, _, cx| {
                this.show_placeholders =
                    *hovered && !this.has_staged_changes() && !this.has_unstaged_conflicts();
                cx.notify()
            }))
            .child(SplitButton::new(
                ButtonLike::new_rounded_left(ElementId::Name(
                    format!("split-button-left-{}", title).into(),
                ))
                .layer(ElevationIndex::ModalSurface)
                .size(ButtonSize::Compact)
                .child(
                    Label::new(title)
                        .size(LabelSize::Small)
                        .color(label_color)
                        .mr_0p5(),
                )
                .on_click({
                    let git_panel = cx.weak_entity();
                    move |_, window, cx| {
                        telemetry::event!("Git Committed", source = "Git Panel");
                        git_panel
                            .update(cx, |git_panel, cx| {
                                git_panel.commit_changes(
                                    CommitOptions { amend, signoff },
                                    window,
                                    cx,
                                );
                            })
                            .ok();
                    }
                })
                .disabled(!can_commit || self.modal_open)
                .tooltip({
                    let handle = commit_tooltip_focus_handle.clone();
                    move |_window, cx| {
                        if can_commit {
                            Tooltip::with_meta_in(
                                tooltip,
                                Some(if amend { &git::Amend } else { &git::Commit }),
                                format!(
                                    "git commit{}{}",
                                    if amend { " --amend" } else { "" },
                                    if signoff { " --signoff" } else { "" }
                                ),
                                &handle.clone(),
                                cx,
                            )
                        } else {
                            Tooltip::simple(tooltip, cx)
                        }
                    }
                }),
                self.render_git_commit_menu(
                    ElementId::Name(format!("split-button-right-{}", title).into()),
                    Some(commit_tooltip_focus_handle),
                    cx,
                )
                .into_any_element(),
            ))
    }

    fn render_pending_amend(&self, cx: &mut Context<Self>) -> impl IntoElement {
        h_flex()
            .py_1p5()
            .px_2()
            .gap_1p5()
            .justify_between()
            .border_t_1()
            .border_color(cx.theme().colors().border.opacity(0.8))
            .child(
                div()
                    .flex_grow()
                    .overflow_hidden()
                    .max_w(relative(0.85))
                    .child(
                        Label::new("This will update your most recent commit.")
                            .size(LabelSize::Small)
                            .truncate(),
                    ),
            )
            .child(
                panel_button("Cancel")
                    .size(ButtonSize::Default)
                    .on_click(cx.listener(|this, _, _, cx| this.set_amend_pending(false, cx))),
            )
    }

    fn render_previous_commit(&self, cx: &mut Context<Self>) -> Option<impl IntoElement> {
        let active_repository = self.active_repository.as_ref()?;
        let branch = active_repository.read(cx).branch.as_ref()?;
        let commit = branch.most_recent_commit.as_ref()?.clone();
        let workspace = self.workspace.clone();
        let this = cx.entity();

        Some(
            h_flex()
                .py_1p5()
                .px_2()
                .gap_1p5()
                .justify_between()
                .border_t_1()
                .border_color(cx.theme().colors().border.opacity(0.8))
                .child(
                    div()
                        .cursor_pointer()
                        .overflow_hidden()
                        .line_clamp(1)
                        .child(
                            Label::new(commit.subject.clone())
                                .size(LabelSize::Small)
                                .truncate(),
                        )
                        .id("commit-msg-hover")
                        .on_click({
                            let commit = commit.clone();
                            let repo = active_repository.downgrade();
                            move |_, window, cx| {
                                CommitView::open(
                                    commit.sha.to_string(),
                                    repo.clone(),
                                    workspace.clone(),
                                    None,
                                    window,
                                    cx,
                                );
                            }
                        })
                        .hoverable_tooltip({
                            let repo = active_repository.clone();
                            move |window, cx| {
                                GitPanelMessageTooltip::new(
                                    this.clone(),
                                    commit.sha.clone(),
                                    repo.clone(),
                                    window,
                                    cx,
                                )
                                .into()
                            }
                        }),
                )
                .when(commit.has_parent, |this| {
                    let has_unstaged = self.has_unstaged_changes();
                    this.child(
                        panel_icon_button("undo", IconName::Undo)
                            .icon_size(IconSize::XSmall)
                            .icon_color(Color::Muted)
                            .tooltip(move |_window, cx| {
                                Tooltip::with_meta(
                                    "Uncommit",
                                    Some(&git::Uncommit),
                                    if has_unstaged {
                                        "git reset HEAD^ --soft"
                                    } else {
                                        "git reset HEAD^"
                                    },
                                    cx,
                                )
                            })
                            .on_click(cx.listener(|this, _, window, cx| this.uncommit(window, cx))),
                    )
                }),
        )
    }

    fn render_empty_state(&self, cx: &mut Context<Self>) -> impl IntoElement {
        h_flex().h_full().flex_grow().justify_center().child(
            v_flex()
                .gap_2()
                .child(h_flex().w_full().justify_around().child(
                    if self.active_repository.is_some() {
                        "No changes to commit"
                    } else {
                        "No Git repositories"
                    },
                ))
                .children({
                    let worktree_count = self.project.read(cx).visible_worktrees(cx).count();
                    (worktree_count > 0 && self.active_repository.is_none()).then(|| {
                        h_flex().w_full().justify_around().child(
                            panel_filled_button("Initialize Repository")
                                .tooltip(Tooltip::for_action_title_in(
                                    "git init",
                                    &git::Init,
                                    &self.focus_handle,
                                ))
                                .on_click(move |_, _, cx| {
                                    cx.defer(move |cx| {
                                        cx.dispatch_action(&git::Init);
                                    })
                                }),
                        )
                    })
                })
                .text_ui_sm(cx)
                .mx_auto()
                .text_color(Color::Placeholder.color(cx)),
        )
    }

    fn render_buffer_header_controls(
        &self,
        entity: &Entity<Self>,
        file: &Arc<dyn File>,
        _: &Window,
        cx: &App,
    ) -> Option<AnyElement> {
        let repo = self.active_repository.as_ref()?.read(cx);
        let project_path = (file.worktree_id(cx), file.path().clone()).into();
        let repo_path = repo.project_path_to_repo_path(&project_path, cx)?;
        let ix = self.entry_by_path(&repo_path, cx)?;
        let entry = self.entries.get(ix)?;

        let is_staging_or_staged = repo
            .pending_ops_for_path(&repo_path)
            .map(|ops| ops.staging() || ops.staged())
            .or_else(|| {
                repo.status_for_path(&repo_path)
                    .and_then(|status| status.status.staging().as_bool())
            })
            .or_else(|| {
                entry
                    .status_entry()
                    .and_then(|entry| entry.staging.as_bool())
            });

        let checkbox = Checkbox::new("stage-file", is_staging_or_staged.into())
            .disabled(!self.has_write_access(cx))
            .fill()
            .elevation(ElevationIndex::Surface)
            .on_click({
                let entry = entry.clone();
                let git_panel = entity.downgrade();
                move |_, window, cx| {
                    git_panel
                        .update(cx, |this, cx| {
                            this.toggle_staged_for_entry(&entry, window, cx);
                            cx.stop_propagation();
                        })
                        .ok();
                }
            });
        Some(
            h_flex()
                .id("start-slot")
                .text_lg()
                .child(checkbox)
                .on_mouse_down(MouseButton::Left, |_, _, cx| {
                    // prevent the list item active state triggering when toggling checkbox
                    cx.stop_propagation();
                })
                .into_any_element(),
        )
    }

    fn render_entries(
        &self,
        has_write_access: bool,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> impl IntoElement {
        let entry_count = self.entries.len();

        v_flex()
            .flex_1()
            .size_full()
            .overflow_hidden()
            .relative()
            .child(
                h_flex()
                    .flex_1()
                    .size_full()
                    .relative()
                    .overflow_hidden()
                    .child(
                        uniform_list(
                            "entries",
                            entry_count,
                            cx.processor(move |this, range: Range<usize>, window, cx| {
                                let mut items = Vec::with_capacity(range.end - range.start);

                                for ix in range {
                                    match &this.entries.get(ix) {
                                        Some(GitListEntry::Status(entry)) => {
                                            items.push(this.render_entry(
                                                ix,
                                                entry,
                                                has_write_access,
                                                window,
                                                cx,
                                            ));
                                        }
                                        Some(GitListEntry::Header(header)) => {
                                            items.push(this.render_list_header(
                                                ix,
                                                header,
                                                has_write_access,
                                                window,
                                                cx,
                                            ));
                                        }
                                        None => {}
                                    }
                                }

                                items
                            }),
                        )
                        .size_full()
                        .flex_grow()
                        .with_sizing_behavior(ListSizingBehavior::Auto)
                        .with_horizontal_sizing_behavior(
                            ListHorizontalSizingBehavior::Unconstrained,
                        )
                        .with_width_from_item(self.max_width_item_index)
                        .track_scroll(&self.scroll_handle),
                    )
                    .on_mouse_down(
                        MouseButton::Right,
                        cx.listener(move |this, event: &MouseDownEvent, window, cx| {
                            this.deploy_panel_context_menu(event.position, window, cx)
                        }),
                    )
                    .custom_scrollbars(
                        Scrollbars::for_settings::<GitPanelSettings>()
                            .tracked_scroll_handle(&self.scroll_handle)
                            .with_track_along(
                                ScrollAxes::Horizontal,
                                cx.theme().colors().panel_background,
                            ),
                        window,
                        cx,
                    ),
            )
    }

    fn entry_label(&self, label: impl Into<SharedString>, color: Color) -> Label {
        Label::new(label.into()).color(color).single_line()
    }

    fn list_item_height(&self) -> Rems {
        rems(1.75)
    }

    fn render_list_header(
        &self,
        ix: usize,
        header: &GitHeaderEntry,
        _: bool,
        _: &Window,
        _: &Context<Self>,
    ) -> AnyElement {
        let id: ElementId = ElementId::Name(format!("header_{}", ix).into());

        h_flex()
            .id(id)
            .h(self.list_item_height())
            .w_full()
            .items_end()
            .px(rems(0.75)) // ~12px
            .pb(rems(0.3125)) // ~ 5px
            .child(
                Label::new(header.title())
                    .color(Color::Muted)
                    .size(LabelSize::Small)
                    .line_height_style(LineHeightStyle::UiLabel)
                    .single_line(),
            )
            .into_any_element()
    }

    pub fn load_commit_details(
        &self,
        sha: String,
        cx: &mut Context<Self>,
    ) -> Task<anyhow::Result<CommitDetails>> {
        let Some(repo) = self.active_repository.clone() else {
            return Task::ready(Err(anyhow::anyhow!("no active repo")));
        };
        repo.update(cx, |repo, cx| {
            let show = repo.show(sha);
            cx.spawn(async move |_, _| show.await?)
        })
    }

    fn deploy_entry_context_menu(
        &mut self,
        position: Point<Pixels>,
        ix: usize,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let Some(entry) = self.entries.get(ix).and_then(|e| e.status_entry()) else {
            return;
        };
        let stage_title = if entry.status.staging().is_fully_staged() {
            "Unstage File"
        } else {
            "Stage File"
        };
        let restore_title = if entry.status.is_created() {
            "Trash File"
        } else {
            "Restore File"
        };
        let context_menu = ContextMenu::build(window, cx, |context_menu, _, _| {
            let mut context_menu = context_menu
                .context(self.focus_handle.clone())
                .action(stage_title, ToggleStaged.boxed_clone())
                .action(restore_title, git::RestoreFile::default().boxed_clone());

            if entry.status.is_created() {
                context_menu =
                    context_menu.action("Add to .gitignore", git::AddToGitignore.boxed_clone());
            }

            context_menu
                .separator()
                .action("Open Diff", Confirm.boxed_clone())
                .action("Open File", SecondaryConfirm.boxed_clone())
        });
        self.selected_entry = Some(ix);
        self.set_context_menu(context_menu, position, window, cx);
    }

    fn deploy_panel_context_menu(
        &mut self,
        position: Point<Pixels>,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        let context_menu = git_panel_context_menu(
            self.focus_handle.clone(),
            GitMenuState {
                has_tracked_changes: self.has_tracked_changes(),
                has_staged_changes: self.has_staged_changes(),
                has_unstaged_changes: self.has_unstaged_changes(),
                has_new_changes: self.new_count > 0,
                sort_by_path: GitPanelSettings::get_global(cx).sort_by_path,
                has_stash_items: self.stash_entries.entries.len() > 0,
            },
            window,
            cx,
        );
        self.set_context_menu(context_menu, position, window, cx);
    }

    fn set_context_menu(
        &mut self,
        context_menu: Entity<ContextMenu>,
        position: Point<Pixels>,
        window: &Window,
        cx: &mut Context<Self>,
    ) {
        let subscription = cx.subscribe_in(
            &context_menu,
            window,
            |this, _, _: &DismissEvent, window, cx| {
                if this.context_menu.as_ref().is_some_and(|context_menu| {
                    context_menu.0.focus_handle(cx).contains_focused(window, cx)
                }) {
                    cx.focus_self(window);
                }
                this.context_menu.take();
                cx.notify();
            },
        );
        self.context_menu = Some((context_menu, position, subscription));
        cx.notify();
    }

    fn render_entry(
        &self,
        ix: usize,
        entry: &GitStatusEntry,
        has_write_access: bool,
        window: &Window,
        cx: &Context<Self>,
    ) -> AnyElement {
        let path_style = self.project.read(cx).path_style(cx);
        let git_path_style = ProjectSettings::get_global(cx).git.path_style;
        let display_name = entry.display_name(path_style);

        let selected = self.selected_entry == Some(ix);
        let marked = self.marked_entries.contains(&ix);
        let status_style = GitPanelSettings::get_global(cx).status_style;
        let status = entry.status;

        let has_conflict = status.is_conflicted();
        let is_modified = status.is_modified();
        let is_deleted = status.is_deleted();

        let label_color = if status_style == StatusStyle::LabelColor {
            if has_conflict {
                Color::VersionControlConflict
            } else if is_modified {
                Color::VersionControlModified
            } else if is_deleted {
                // We don't want a bunch of red labels in the list
                Color::Disabled
            } else {
                Color::VersionControlAdded
            }
        } else {
            Color::Default
        };

        let path_color = if status.is_deleted() {
            Color::Disabled
        } else {
            Color::Muted
        };

        let id: ElementId = ElementId::Name(format!("entry_{}_{}", display_name, ix).into());
        let checkbox_wrapper_id: ElementId =
            ElementId::Name(format!("entry_{}_{}_checkbox_wrapper", display_name, ix).into());
        let checkbox_id: ElementId =
            ElementId::Name(format!("entry_{}_{}_checkbox", display_name, ix).into());

        let active_repo = self
            .project
            .read(cx)
            .active_repository(cx)
            .expect("active repository must be set");
        let repo = active_repo.read(cx);
        // Checking for current staged/unstaged file status is a chained operation:
        // 1. first, we check for any pending operation recorded in repository
        // 2. if there are no pending ops either running or finished, we then ask the repository
        //    for the most up-to-date file status read from disk - we do this since `entry` arg to this function `render_entry`
        //    is likely to be staled, and may lead to weird artifacts in the form of subsecond auto-uncheck/check on
        //    the checkbox's state (or flickering) which is undesirable.
        // 3. finally, if there is no info about this `entry` in the repo, we fall back to whatever status is encoded
        //    in `entry` arg.
        let is_staging_or_staged = repo
            .pending_ops_for_path(&entry.repo_path)
            .map(|ops| ops.staging() || ops.staged())
            .or_else(|| {
                repo.status_for_path(&entry.repo_path)
                    .and_then(|status| status.status.staging().as_bool())
            })
            .or_else(|| entry.staging.as_bool());
        let mut is_staged: ToggleState = is_staging_or_staged.into();
        if self.show_placeholders && !self.has_staged_changes() && !entry.status.is_created() {
            is_staged = ToggleState::Selected;
        }

        let handle = cx.weak_entity();

        let selected_bg_alpha = 0.08;
        let marked_bg_alpha = 0.12;
        let state_opacity_step = 0.04;

        let base_bg = match (selected, marked) {
            (true, true) => cx
                .theme()
                .status()
                .info
                .alpha(selected_bg_alpha + marked_bg_alpha),
            (true, false) => cx.theme().status().info.alpha(selected_bg_alpha),
            (false, true) => cx.theme().status().info.alpha(marked_bg_alpha),
            _ => cx.theme().colors().ghost_element_background,
        };

        let hover_bg = if selected {
            cx.theme()
                .status()
                .info
                .alpha(selected_bg_alpha + state_opacity_step)
        } else {
            cx.theme().colors().ghost_element_hover
        };

        let active_bg = if selected {
            cx.theme()
                .status()
                .info
                .alpha(selected_bg_alpha + state_opacity_step * 2.0)
        } else {
            cx.theme().colors().ghost_element_active
        };
        h_flex()
            .id(id)
            .h(self.list_item_height())
            .w_full()
            .items_center()
            .border_1()
            .when(selected && self.focus_handle.is_focused(window), |el| {
                el.border_color(cx.theme().colors().border_focused)
            })
            .px(rems(0.75)) // ~12px
            .overflow_hidden()
            .flex_none()
            .gap_1p5()
            .bg(base_bg)
            .hover(|this| this.bg(hover_bg))
            .active(|this| this.bg(active_bg))
            .on_click({
                cx.listener(move |this, event: &ClickEvent, window, cx| {
                    this.selected_entry = Some(ix);
                    cx.notify();
                    if event.modifiers().secondary() {
                        this.open_file(&Default::default(), window, cx)
                    } else {
                        this.open_diff(&Default::default(), window, cx);
                        this.focus_handle.focus(window);
                    }
                })
            })
            .on_mouse_down(
                MouseButton::Right,
                move |event: &MouseDownEvent, window, cx| {
                    // why isn't this happening automatically? we are passing MouseButton::Right to `on_mouse_down`?
                    if event.button != MouseButton::Right {
                        return;
                    }

                    let Some(this) = handle.upgrade() else {
                        return;
                    };
                    this.update(cx, |this, cx| {
                        this.deploy_entry_context_menu(event.position, ix, window, cx);
                    });
                    cx.stop_propagation();
                },
            )
            .child(
                div()
                    .id(checkbox_wrapper_id)
                    .flex_none()
                    .occlude()
                    .cursor_pointer()
                    .child(
                        Checkbox::new(checkbox_id, is_staged)
                            .disabled(!has_write_access)
                            .fill()
                            .elevation(ElevationIndex::Surface)
                            .on_click_ext({
                                let entry = entry.clone();
                                let this = cx.weak_entity();
                                move |_, click, window, cx| {
                                    this.update(cx, |this, cx| {
                                        if !has_write_access {
                                            return;
                                        }
                                        if click.modifiers().shift {
                                            this.stage_bulk(ix, cx);
                                        } else {
                                            this.toggle_staged_for_entry(
                                                &GitListEntry::Status(entry.clone()),
                                                window,
                                                cx,
                                            );
                                        }
                                        cx.stop_propagation();
                                    })
                                    .ok();
                                }
                            })
                            .tooltip(move |_window, cx| {
                                // If is_staging_or_staged is None, this implies the file was partially staged, and so
                                // we allow the user to stage it in full by displaying `Stage` in the tooltip.
                                let action = if is_staging_or_staged.unwrap_or(false) {
                                    "Unstage"
                                } else {
                                    "Stage"
                                };
                                let tooltip_name = action.to_string();

                                Tooltip::for_action(tooltip_name, &ToggleStaged, cx)
                            }),
                    ),
            )
            .child(git_status_icon(status))
            .child(
                h_flex()
                    .items_center()
                    .flex_1()
                    .child(h_flex().items_center().flex_1().map(|this| {
                        self.path_formatted(
                            this,
                            entry.parent_dir(path_style),
                            path_color,
                            display_name,
                            label_color,
                            path_style,
                            git_path_style,
                            status.is_deleted(),
                        )
                    })),
            )
            .into_any_element()
    }

    fn path_formatted(
        &self,
        parent: Div,
        directory: Option<String>,
        path_color: Color,
        file_name: String,
        label_color: Color,
        path_style: PathStyle,
        git_path_style: GitPathStyle,
        strikethrough: bool,
    ) -> Div {
        parent
            .when(git_path_style == GitPathStyle::FileNameFirst, |this| {
                this.child(
                    self.entry_label(
                        match directory.as_ref().is_none_or(|d| d.is_empty()) {
                            true => file_name.clone(),
                            false => format!("{file_name} "),
                        },
                        label_color,
                    )
                    .when(strikethrough, Label::strikethrough),
                )
            })
            .when_some(directory, |this, dir| {
                match (
                    !dir.is_empty(),
                    git_path_style == GitPathStyle::FileNameFirst,
                ) {
                    (true, true) => this.child(
                        self.entry_label(dir, path_color)
                            .when(strikethrough, Label::strikethrough),
                    ),
                    (true, false) => this.child(
                        self.entry_label(
                            format!("{dir}{}", path_style.primary_separator()),
                            path_color,
                        )
                        .when(strikethrough, Label::strikethrough),
                    ),
                    _ => this,
                }
            })
            .when(git_path_style == GitPathStyle::FilePathFirst, |this| {
                this.child(
                    self.entry_label(file_name, label_color)
                        .when(strikethrough, Label::strikethrough),
                )
            })
    }

    fn has_write_access(&self, cx: &App) -> bool {
        !self.project.read(cx).is_read_only(cx)
    }

    pub fn amend_pending(&self) -> bool {
        self.amend_pending
    }

    pub fn set_amend_pending(&mut self, value: bool, cx: &mut Context<Self>) {
        if value && !self.amend_pending {
            let current_message = self.commit_message_buffer(cx).read(cx).text();
            self.original_commit_message = if current_message.trim().is_empty() {
                None
            } else {
                Some(current_message)
            };
        } else if !value && self.amend_pending {
            let message = self.original_commit_message.take().unwrap_or_default();
            self.commit_message_buffer(cx).update(cx, |buffer, cx| {
                let start = buffer.anchor_before(0);
                let end = buffer.anchor_after(buffer.len());
                buffer.edit([(start..end, message)], None, cx);
            });
        }

        self.amend_pending = value;
        self.serialize(cx);
        cx.notify();
    }

    pub fn signoff_enabled(&self) -> bool {
        self.signoff_enabled
    }

    pub fn set_signoff_enabled(&mut self, value: bool, cx: &mut Context<Self>) {
        self.signoff_enabled = value;
        self.serialize(cx);
        cx.notify();
    }

    pub fn toggle_signoff_enabled(
        &mut self,
        _: &Signoff,
        _window: &mut Window,
        cx: &mut Context<Self>,
    ) {
        self.set_signoff_enabled(!self.signoff_enabled, cx);
    }

    pub async fn load(
        workspace: WeakEntity<Workspace>,
        mut cx: AsyncWindowContext,
    ) -> anyhow::Result<Entity<Self>> {
        let serialized_panel = match workspace
            .read_with(&cx, |workspace, _| Self::serialization_key(workspace))
            .ok()
            .flatten()
        {
            Some(serialization_key) => cx
                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(&serialization_key) })
                .await
                .context("loading git panel")
                .log_err()
                .flatten()
                .map(|panel| serde_json::from_str::<SerializedGitPanel>(&panel))
                .transpose()
                .log_err()
                .flatten(),
            None => None,
        };

        workspace.update_in(&mut cx, |workspace, window, cx| {
            let panel = GitPanel::new(workspace, window, cx);

            if let Some(serialized_panel) = serialized_panel {
                panel.update(cx, |panel, cx| {
                    panel.width = serialized_panel.width;
                    panel.amend_pending = serialized_panel.amend_pending;
                    panel.signoff_enabled = serialized_panel.signoff_enabled;
                    cx.notify();
                })
            }

            panel
        })
    }

    fn stage_bulk(&mut self, mut index: usize, cx: &mut Context<'_, Self>) {
        let Some(op) = self.bulk_staging.as_ref() else {
            return;
        };
        let Some(mut anchor_index) = self.entry_by_path(&op.anchor, cx) else {
            return;
        };
        if let Some(entry) = self.entries.get(index)
            && let Some(entry) = entry.status_entry()
        {
            self.set_bulk_staging_anchor(entry.repo_path.clone(), cx);
        }
        if index < anchor_index {
            std::mem::swap(&mut index, &mut anchor_index);
        }
        let entries = self
            .entries
            .get(anchor_index..=index)
            .unwrap_or_default()
            .iter()
            .filter_map(|entry| entry.status_entry().cloned())
            .collect::<Vec<_>>();
        self.change_file_stage(true, entries, cx);
    }

    fn set_bulk_staging_anchor(&mut self, path: RepoPath, cx: &mut Context<'_, GitPanel>) {
        let Some(repo) = self.active_repository.as_ref() else {
            return;
        };
        self.bulk_staging = Some(BulkStaging {
            repo_id: repo.read(cx).id,
            anchor: path,
        });
    }

    pub(crate) fn toggle_amend_pending(&mut self, cx: &mut Context<Self>) {
        self.set_amend_pending(!self.amend_pending, cx);
        if self.amend_pending {
            self.load_last_commit_message_if_empty(cx);
        }
    }
}

impl Render for GitPanel {
    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let project = self.project.read(cx);
        let has_entries = !self.entries.is_empty();
        let room = self
            .workspace
            .upgrade()
            .and_then(|workspace| workspace.read(cx).active_call()?.read(cx).room().cloned());

        let has_write_access = self.has_write_access(cx);

        let has_co_authors = room.is_some_and(|room| {
            self.load_local_committer(cx);
            let room = room.read(cx);
            room.remote_participants()
                .values()
                .any(|remote_participant| remote_participant.can_write())
        });

        v_flex()
            .id("git_panel")
            .key_context(self.dispatch_context(window, cx))
            .track_focus(&self.focus_handle)
            .when(has_write_access && !project.is_read_only(cx), |this| {
                this.on_action(cx.listener(Self::toggle_staged_for_selected))
                    .on_action(cx.listener(Self::stage_range))
                    .on_action(cx.listener(GitPanel::commit))
                    .on_action(cx.listener(GitPanel::amend))
                    .on_action(cx.listener(GitPanel::toggle_signoff_enabled))
                    .on_action(cx.listener(Self::stage_all))
                    .on_action(cx.listener(Self::unstage_all))
                    .on_action(cx.listener(Self::stage_selected))
                    .on_action(cx.listener(Self::unstage_selected))
                    .on_action(cx.listener(Self::restore_tracked_files))
                    .on_action(cx.listener(Self::revert_selected))
                    .on_action(cx.listener(Self::add_to_gitignore))
                    .on_action(cx.listener(Self::clean_all))
                    .on_action(cx.listener(Self::generate_commit_message_action))
                    .on_action(cx.listener(Self::stash_all))
                    .on_action(cx.listener(Self::stash_pop))
            })
            .on_action(cx.listener(Self::select_first))
            .on_action(cx.listener(Self::select_next))
            .on_action(cx.listener(Self::select_previous))
            .on_action(cx.listener(Self::select_last))
            .on_action(cx.listener(Self::close_panel))
            .on_action(cx.listener(Self::open_diff))
            .on_action(cx.listener(Self::open_file))
            .on_action(cx.listener(Self::focus_changes_list))
            .on_action(cx.listener(Self::focus_editor))
            .on_action(cx.listener(Self::expand_commit_editor))
            .when(has_write_access && has_co_authors, |git_panel| {
                git_panel.on_action(cx.listener(Self::toggle_fill_co_authors))
            })
            .on_action(cx.listener(Self::toggle_sort_by_path))
            .size_full()
            .overflow_hidden()
            .bg(cx.theme().colors().panel_background)
            .child(
                v_flex()
                    .size_full()
                    .children(self.render_panel_header(window, cx))
                    .map(|this| {
                        if has_entries {
                            this.child(self.render_entries(has_write_access, window, cx))
                        } else {
                            this.child(self.render_empty_state(cx).into_any_element())
                        }
                    })
                    .children(self.render_footer(window, cx))
                    .when(self.amend_pending, |this| {
                        this.child(self.render_pending_amend(cx))
                    })
                    .when(!self.amend_pending, |this| {
                        this.children(self.render_previous_commit(cx))
                    })
                    .into_any_element(),
            )
            .children(self.context_menu.as_ref().map(|(menu, position, _)| {
                deferred(
                    anchored()
                        .position(*position)
                        .anchor(Corner::TopLeft)
                        .child(menu.clone()),
                )
                .with_priority(1)
            }))
    }
}

impl Focusable for GitPanel {
    fn focus_handle(&self, cx: &App) -> gpui::FocusHandle {
        if self.entries.is_empty() {
            self.commit_editor.focus_handle(cx)
        } else {
            self.focus_handle.clone()
        }
    }
}

impl EventEmitter<Event> for GitPanel {}

impl EventEmitter<PanelEvent> for GitPanel {}

pub(crate) struct GitPanelAddon {
    pub(crate) workspace: WeakEntity<Workspace>,
}

impl editor::Addon for GitPanelAddon {
    fn to_any(&self) -> &dyn std::any::Any {
        self
    }

    fn render_buffer_header_controls(
        &self,
        excerpt_info: &ExcerptInfo,
        window: &Window,
        cx: &App,
    ) -> Option<AnyElement> {
        let file = excerpt_info.buffer.file()?;
        let git_panel = self.workspace.upgrade()?.read(cx).panel::<GitPanel>(cx)?;

        git_panel
            .read(cx)
            .render_buffer_header_controls(&git_panel, file, window, cx)
    }
}

impl Panel for GitPanel {
    fn persistent_name() -> &'static str {
        "GitPanel"
    }

    fn panel_key() -> &'static str {
        GIT_PANEL_KEY
    }

    fn position(&self, _: &Window, cx: &App) -> DockPosition {
        GitPanelSettings::get_global(cx).dock
    }

    fn position_is_valid(&self, position: DockPosition) -> bool {
        matches!(position, DockPosition::Left | DockPosition::Right)
    }

    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
        settings::update_settings_file(self.fs.clone(), cx, move |settings, _| {
            settings.git_panel.get_or_insert_default().dock = Some(position.into())
        });
    }

    fn size(&self, _: &Window, cx: &App) -> Pixels {
        self.width
            .unwrap_or_else(|| GitPanelSettings::get_global(cx).default_width)
    }

    fn set_size(&mut self, size: Option<Pixels>, _: &mut Window, cx: &mut Context<Self>) {
        self.width = size;
        self.serialize(cx);
        cx.notify();
    }

    fn icon(&self, _: &Window, cx: &App) -> Option<ui::IconName> {
        Some(ui::IconName::GitBranchAlt).filter(|_| GitPanelSettings::get_global(cx).button)
    }

    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
        Some("Git Panel")
    }

    fn toggle_action(&self) -> Box<dyn Action> {
        Box::new(ToggleFocus)
    }

    fn activation_priority(&self) -> u32 {
        2
    }
}

impl PanelHeader for GitPanel {}

struct GitPanelMessageTooltip {
    commit_tooltip: Option<Entity<CommitTooltip>>,
}

impl GitPanelMessageTooltip {
    fn new(
        git_panel: Entity<GitPanel>,
        sha: SharedString,
        repository: Entity<Repository>,
        window: &mut Window,
        cx: &mut App,
    ) -> Entity<Self> {
        cx.new(|cx| {
            cx.spawn_in(window, async move |this, cx| {
                let (details, workspace) = git_panel.update(cx, |git_panel, cx| {
                    (
                        git_panel.load_commit_details(sha.to_string(), cx),
                        git_panel.workspace.clone(),
                    )
                })?;
                let details = details.await?;

                let commit_details = crate::commit_tooltip::CommitDetails {
                    sha: details.sha.clone(),
                    author_name: details.author_name.clone(),
                    author_email: details.author_email.clone(),
                    commit_time: OffsetDateTime::from_unix_timestamp(details.commit_timestamp)?,
                    message: Some(ParsedCommitMessage {
                        message: details.message,
                        ..Default::default()
                    }),
                };

                this.update(cx, |this: &mut GitPanelMessageTooltip, cx| {
                    this.commit_tooltip = Some(cx.new(move |cx| {
                        CommitTooltip::new(commit_details, repository, workspace, cx)
                    }));
                    cx.notify();
                })
            })
            .detach();

            Self {
                commit_tooltip: None,
            }
        })
    }
}

impl Render for GitPanelMessageTooltip {
    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
        if let Some(commit_tooltip) = &self.commit_tooltip {
            commit_tooltip.clone().into_any_element()
        } else {
            gpui::Empty.into_any_element()
        }
    }
}

#[derive(IntoElement, RegisterComponent)]
pub struct PanelRepoFooter {
    active_repository: SharedString,
    branch: Option<Branch>,
    head_commit: Option<CommitDetails>,

    // Getting a GitPanel in previews will be difficult.
    //
    // For now just take an option here, and we won't bind handlers to buttons in previews.
    git_panel: Option<Entity<GitPanel>>,
}

impl PanelRepoFooter {
    pub fn new(
        active_repository: SharedString,
        branch: Option<Branch>,
        head_commit: Option<CommitDetails>,
        git_panel: Option<Entity<GitPanel>>,
    ) -> Self {
        Self {
            active_repository,
            branch,
            head_commit,
            git_panel,
        }
    }

    pub fn new_preview(active_repository: SharedString, branch: Option<Branch>) -> Self {
        Self {
            active_repository,
            branch,
            head_commit: None,
            git_panel: None,
        }
    }
}

impl RenderOnce for PanelRepoFooter {
    fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
        let project = self
            .git_panel
            .as_ref()
            .map(|panel| panel.read(cx).project.clone());

        let repo = self
            .git_panel
            .as_ref()
            .and_then(|panel| panel.read(cx).active_repository.clone());

        let single_repo = project
            .as_ref()
            .map(|project| project.read(cx).git_store().read(cx).repositories().len() == 1)
            .unwrap_or(true);

        const MAX_BRANCH_LEN: usize = 16;
        const MAX_REPO_LEN: usize = 16;
        const LABEL_CHARACTER_BUDGET: usize = MAX_BRANCH_LEN + MAX_REPO_LEN;
        const MAX_SHORT_SHA_LEN: usize = 8;

        let branch_name = self
            .branch
            .as_ref()
            .map(|branch| branch.name().to_owned())
            .or_else(|| {
                self.head_commit.as_ref().map(|commit| {
                    commit
                        .sha
                        .chars()
                        .take(MAX_SHORT_SHA_LEN)
                        .collect::<String>()
                })
            })
            .unwrap_or_else(|| " (no branch)".to_owned());
        let show_separator = self.branch.is_some() || self.head_commit.is_some();

        let active_repo_name = self.active_repository.clone();

        let branch_actual_len = branch_name.len();
        let repo_actual_len = active_repo_name.len();

        // ideally, show the whole branch and repo names but
        // when we can't, use a budget to allocate space between the two
        let (repo_display_len, branch_display_len) =
            if branch_actual_len + repo_actual_len <= LABEL_CHARACTER_BUDGET {
                (repo_actual_len, branch_actual_len)
            } else if branch_actual_len <= MAX_BRANCH_LEN {
                let repo_space = (LABEL_CHARACTER_BUDGET - branch_actual_len).min(MAX_REPO_LEN);
                (repo_space, branch_actual_len)
            } else if repo_actual_len <= MAX_REPO_LEN {
                let branch_space = (LABEL_CHARACTER_BUDGET - repo_actual_len).min(MAX_BRANCH_LEN);
                (repo_actual_len, branch_space)
            } else {
                (MAX_REPO_LEN, MAX_BRANCH_LEN)
            };

        let truncated_repo_name = if repo_actual_len <= repo_display_len {
            active_repo_name.to_string()
        } else {
            util::truncate_and_trailoff(active_repo_name.trim_ascii(), repo_display_len)
        };

        let truncated_branch_name = if branch_actual_len <= branch_display_len {
            branch_name
        } else {
            util::truncate_and_trailoff(branch_name.trim_ascii(), branch_display_len)
        };

        let repo_selector_trigger = Button::new("repo-selector", truncated_repo_name)
            .size(ButtonSize::None)
            .label_size(LabelSize::Small)
            .color(Color::Muted);

        let repo_selector = PopoverMenu::new("repository-switcher")
            .menu({
                let project = project;
                move |window, cx| {
                    let project = project.clone()?;
                    Some(cx.new(|cx| RepositorySelector::new(project, rems(16.), window, cx)))
                }
            })
            .trigger_with_tooltip(
                repo_selector_trigger.disabled(single_repo).truncate(true),
                Tooltip::text("Switch Active Repository"),
            )
            .anchor(Corner::BottomLeft)
            .into_any_element();

        let branch_selector_button = Button::new("branch-selector", truncated_branch_name)
            .size(ButtonSize::None)
            .label_size(LabelSize::Small)
            .truncate(true)
            .on_click(|_, window, cx| {
                window.dispatch_action(zed_actions::git::Switch.boxed_clone(), cx);
            });

        let branch_selector = PopoverMenu::new("popover-button")
            .menu(move |window, cx| Some(branch_picker::popover(repo.clone(), window, cx)))
            .trigger_with_tooltip(
                branch_selector_button,
                Tooltip::for_action_title("Switch Branch", &zed_actions::git::Switch),
            )
            .anchor(Corner::BottomLeft)
            .offset(gpui::Point {
                x: px(0.0),
                y: px(-2.0),
            });

        h_flex()
            .h(px(36.))
            .w_full()
            .px_2()
            .justify_between()
            .gap_1()
            .child(
                h_flex()
                    .flex_1()
                    .overflow_hidden()
                    .gap_px()
                    .child(
                        Icon::new(IconName::GitBranchAlt)
                            .size(IconSize::Small)
                            .color(if single_repo {
                                Color::Disabled
                            } else {
                                Color::Muted
                            }),
                    )
                    .child(repo_selector)
                    .when(show_separator, |this| {
                        this.child(
                            div()
                                .text_sm()
                                .text_color(cx.theme().colors().icon_muted.opacity(0.5))
                                .child("/"),
                        )
                    })
                    .child(branch_selector),
            )
            .children(if let Some(git_panel) = self.git_panel {
                git_panel.update(cx, |git_panel, cx| git_panel.render_remote_button(cx))
            } else {
                None
            })
    }
}

impl Component for PanelRepoFooter {
    fn scope() -> ComponentScope {
        ComponentScope::VersionControl
    }

    fn preview(_window: &mut Window, _cx: &mut App) -> Option<AnyElement> {
        let unknown_upstream = None;
        let no_remote_upstream = Some(UpstreamTracking::Gone);
        let ahead_of_upstream = Some(
            UpstreamTrackingStatus {
                ahead: 2,
                behind: 0,
            }
            .into(),
        );
        let behind_upstream = Some(
            UpstreamTrackingStatus {
                ahead: 0,
                behind: 2,
            }
            .into(),
        );
        let ahead_and_behind_upstream = Some(
            UpstreamTrackingStatus {
                ahead: 3,
                behind: 1,
            }
            .into(),
        );

        let not_ahead_or_behind_upstream = Some(
            UpstreamTrackingStatus {
                ahead: 0,
                behind: 0,
            }
            .into(),
        );

        fn branch(upstream: Option<UpstreamTracking>) -> Branch {
            Branch {
                is_head: true,
                ref_name: "some-branch".into(),
                upstream: upstream.map(|tracking| Upstream {
                    ref_name: "origin/some-branch".into(),
                    tracking,
                }),
                most_recent_commit: Some(CommitSummary {
                    sha: "abc123".into(),
                    subject: "Modify stuff".into(),
                    commit_timestamp: 1710932954,
                    author_name: "John Doe".into(),
                    has_parent: true,
                }),
            }
        }

        fn custom(branch_name: &str, upstream: Option<UpstreamTracking>) -> Branch {
            Branch {
                is_head: true,
                ref_name: branch_name.to_string().into(),
                upstream: upstream.map(|tracking| Upstream {
                    ref_name: format!("zed/{}", branch_name).into(),
                    tracking,
                }),
                most_recent_commit: Some(CommitSummary {
                    sha: "abc123".into(),
                    subject: "Modify stuff".into(),
                    commit_timestamp: 1710932954,
                    author_name: "John Doe".into(),
                    has_parent: true,
                }),
            }
        }

        fn active_repository(id: usize) -> SharedString {
            format!("repo-{}", id).into()
        }

        let example_width = px(340.);
        Some(
            v_flex()
                .gap_6()
                .w_full()
                .flex_none()
                .children(vec![
                    example_group_with_title(
                        "Action Button States",
                        vec![
                            single_example(
                                "No Branch",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(active_repository(1), None))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Remote status unknown",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        active_repository(2),
                                        Some(branch(unknown_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "No Remote Upstream",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        active_repository(3),
                                        Some(branch(no_remote_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Not Ahead or Behind",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        active_repository(4),
                                        Some(branch(not_ahead_or_behind_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Behind remote",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        active_repository(5),
                                        Some(branch(behind_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Ahead of remote",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        active_repository(6),
                                        Some(branch(ahead_of_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Ahead and behind remote",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        active_repository(7),
                                        Some(branch(ahead_and_behind_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                        ],
                    )
                    .grow()
                    .vertical(),
                ])
                .children(vec![
                    example_group_with_title(
                        "Labels",
                        vec![
                            single_example(
                                "Short Branch & Repo",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        SharedString::from("zed"),
                                        Some(custom("main", behind_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Long Branch",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        SharedString::from("zed"),
                                        Some(custom(
                                            "redesign-and-update-git-ui-list-entry-style",
                                            behind_upstream,
                                        )),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Long Repo",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        SharedString::from("zed-industries-community-examples"),
                                        Some(custom("gpui", ahead_of_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Long Repo & Branch",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        SharedString::from("zed-industries-community-examples"),
                                        Some(custom(
                                            "redesign-and-update-git-ui-list-entry-style",
                                            behind_upstream,
                                        )),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Uppercase Repo",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        SharedString::from("LICENSES"),
                                        Some(custom("main", ahead_of_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                            single_example(
                                "Uppercase Branch",
                                div()
                                    .w(example_width)
                                    .overflow_hidden()
                                    .child(PanelRepoFooter::new_preview(
                                        SharedString::from("zed"),
                                        Some(custom("update-README", behind_upstream)),
                                    ))
                                    .into_any_element(),
                            ),
                        ],
                    )
                    .grow()
                    .vertical(),
                ])
                .into_any_element(),
        )
    }
}

#[cfg(test)]
mod tests {
    use git::{
        repository::repo_path,
        status::{StatusCode, UnmergedStatus, UnmergedStatusCode},
    };
    use gpui::{TestAppContext, UpdateGlobal, VisualTestContext};
    use indoc::indoc;
    use project::FakeFs;
    use serde_json::json;
    use settings::SettingsStore;
    use theme::LoadThemes;
    use util::path;
    use util::rel_path::rel_path;

    use super::*;

    fn init_test(cx: &mut gpui::TestAppContext) {
        zlog::init_test();

        cx.update(|cx| {
            let settings_store = SettingsStore::test(cx);
            cx.set_global(settings_store);
            theme::init(LoadThemes::JustBase, cx);
            editor::init(cx);
            crate::init(cx);
        });
    }

    #[gpui::test]
    async fn test_entry_worktree_paths(cx: &mut TestAppContext) {
        init_test(cx);
        let fs = FakeFs::new(cx.background_executor.clone());
        fs.insert_tree(
            "/root",
            json!({
                "zed": {
                    ".git": {},
                    "crates": {
                        "gpui": {
                            "gpui.rs": "fn main() {}"
                        },
                        "util": {
                            "util.rs": "fn do_it() {}"
                        }
                    }
                },
            }),
        )
        .await;

        fs.set_status_for_repo(
            Path::new(path!("/root/zed/.git")),
            &[
                ("crates/gpui/gpui.rs", StatusCode::Modified.worktree()),
                ("crates/util/util.rs", StatusCode::Modified.worktree()),
            ],
        );

        let project =
            Project::test(fs.clone(), [path!("/root/zed/crates/gpui").as_ref()], cx).await;
        let workspace =
            cx.add_window(|window, cx| Workspace::test_new(project.clone(), window, cx));
        let cx = &mut VisualTestContext::from_window(*workspace, cx);

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let panel = workspace.update(cx, GitPanel::new).unwrap();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        let entries = panel.read_with(cx, |panel, _| panel.entries.clone());
        pretty_assertions::assert_eq!(
            entries,
            [
                GitListEntry::Header(GitHeaderEntry {
                    header: Section::Tracked
                }),
                GitListEntry::Status(GitStatusEntry {
                    repo_path: repo_path("crates/gpui/gpui.rs"),
                    status: StatusCode::Modified.worktree(),
                    staging: StageStatus::Unstaged,
                }),
                GitListEntry::Status(GitStatusEntry {
                    repo_path: repo_path("crates/util/util.rs"),
                    status: StatusCode::Modified.worktree(),
                    staging: StageStatus::Unstaged,
                },),
            ],
        );

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;
        let entries = panel.read_with(cx, |panel, _| panel.entries.clone());
        pretty_assertions::assert_eq!(
            entries,
            [
                GitListEntry::Header(GitHeaderEntry {
                    header: Section::Tracked
                }),
                GitListEntry::Status(GitStatusEntry {
                    repo_path: repo_path("crates/gpui/gpui.rs"),
                    status: StatusCode::Modified.worktree(),
                    staging: StageStatus::Unstaged,
                }),
                GitListEntry::Status(GitStatusEntry {
                    repo_path: repo_path("crates/util/util.rs"),
                    status: StatusCode::Modified.worktree(),
                    staging: StageStatus::Unstaged,
                },),
            ],
        );
    }

    #[gpui::test]
    async fn test_bulk_staging(cx: &mut TestAppContext) {
        use GitListEntry::*;

        init_test(cx);
        let fs = FakeFs::new(cx.background_executor.clone());
        fs.insert_tree(
            "/root",
            json!({
                "project": {
                    ".git": {},
                    "src": {
                        "main.rs": "fn main() {}",
                        "lib.rs": "pub fn hello() {}",
                        "utils.rs": "pub fn util() {}"
                    },
                    "tests": {
                        "test.rs": "fn test() {}"
                    },
                    "new_file.txt": "new content",
                    "another_new.rs": "// new file",
                    "conflict.txt": "conflicted content"
                }
            }),
        )
        .await;

        fs.set_status_for_repo(
            Path::new(path!("/root/project/.git")),
            &[
                ("src/main.rs", StatusCode::Modified.worktree()),
                ("src/lib.rs", StatusCode::Modified.worktree()),
                ("tests/test.rs", StatusCode::Modified.worktree()),
                ("new_file.txt", FileStatus::Untracked),
                ("another_new.rs", FileStatus::Untracked),
                ("src/utils.rs", FileStatus::Untracked),
                (
                    "conflict.txt",
                    UnmergedStatus {
                        first_head: UnmergedStatusCode::Updated,
                        second_head: UnmergedStatusCode::Updated,
                    }
                    .into(),
                ),
            ],
        );

        let project = Project::test(fs.clone(), [Path::new(path!("/root/project"))], cx).await;
        let workspace =
            cx.add_window(|window, cx| Workspace::test_new(project.clone(), window, cx));
        let cx = &mut VisualTestContext::from_window(*workspace, cx);

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let panel = workspace.update(cx, GitPanel::new).unwrap();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        let entries = panel.read_with(cx, |panel, _| panel.entries.clone());
        #[rustfmt::skip]
        pretty_assertions::assert_matches!(
            entries.as_slice(),
            &[
                Header(GitHeaderEntry { header: Section::Conflict }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Header(GitHeaderEntry { header: Section::Tracked }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Header(GitHeaderEntry { header: Section::New }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
            ],
        );

        let second_status_entry = entries[3].clone();
        panel.update_in(cx, |panel, window, cx| {
            panel.toggle_staged_for_entry(&second_status_entry, window, cx);
        });

        panel.update_in(cx, |panel, window, cx| {
            panel.selected_entry = Some(7);
            panel.stage_range(&git::StageRange, window, cx);
        });

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        let entries = panel.read_with(cx, |panel, _| panel.entries.clone());
        #[rustfmt::skip]
        pretty_assertions::assert_matches!(
            entries.as_slice(),
            &[
                Header(GitHeaderEntry { header: Section::Conflict }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Header(GitHeaderEntry { header: Section::Tracked }),
                Status(GitStatusEntry { staging: StageStatus::Staged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Staged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Staged, .. }),
                Header(GitHeaderEntry { header: Section::New }),
                Status(GitStatusEntry { staging: StageStatus::Staged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
            ],
        );

        let third_status_entry = entries[4].clone();
        panel.update_in(cx, |panel, window, cx| {
            panel.toggle_staged_for_entry(&third_status_entry, window, cx);
        });

        panel.update_in(cx, |panel, window, cx| {
            panel.selected_entry = Some(9);
            panel.stage_range(&git::StageRange, window, cx);
        });

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        let entries = panel.read_with(cx, |panel, _| panel.entries.clone());
        #[rustfmt::skip]
        pretty_assertions::assert_matches!(
            entries.as_slice(),
            &[
                Header(GitHeaderEntry { header: Section::Conflict }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Header(GitHeaderEntry { header: Section::Tracked }),
                Status(GitStatusEntry { staging: StageStatus::Staged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Staged, .. }),
                Header(GitHeaderEntry { header: Section::New }),
                Status(GitStatusEntry { staging: StageStatus::Staged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Staged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Staged, .. }),
            ],
        );
    }

    #[gpui::test]
    async fn test_bulk_staging_with_sort_by_paths(cx: &mut TestAppContext) {
        use GitListEntry::*;

        init_test(cx);
        let fs = FakeFs::new(cx.background_executor.clone());
        fs.insert_tree(
            "/root",
            json!({
                "project": {
                    ".git": {},
                    "src": {
                        "main.rs": "fn main() {}",
                        "lib.rs": "pub fn hello() {}",
                        "utils.rs": "pub fn util() {}"
                    },
                    "tests": {
                        "test.rs": "fn test() {}"
                    },
                    "new_file.txt": "new content",
                    "another_new.rs": "// new file",
                    "conflict.txt": "conflicted content"
                }
            }),
        )
        .await;

        fs.set_status_for_repo(
            Path::new(path!("/root/project/.git")),
            &[
                ("src/main.rs", StatusCode::Modified.worktree()),
                ("src/lib.rs", StatusCode::Modified.worktree()),
                ("tests/test.rs", StatusCode::Modified.worktree()),
                ("new_file.txt", FileStatus::Untracked),
                ("another_new.rs", FileStatus::Untracked),
                ("src/utils.rs", FileStatus::Untracked),
                (
                    "conflict.txt",
                    UnmergedStatus {
                        first_head: UnmergedStatusCode::Updated,
                        second_head: UnmergedStatusCode::Updated,
                    }
                    .into(),
                ),
            ],
        );

        let project = Project::test(fs.clone(), [Path::new(path!("/root/project"))], cx).await;
        let workspace =
            cx.add_window(|window, cx| Workspace::test_new(project.clone(), window, cx));
        let cx = &mut VisualTestContext::from_window(*workspace, cx);

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let panel = workspace.update(cx, GitPanel::new).unwrap();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        let entries = panel.read_with(cx, |panel, _| panel.entries.clone());
        #[rustfmt::skip]
        pretty_assertions::assert_matches!(
            entries.as_slice(),
            &[
                Header(GitHeaderEntry { header: Section::Conflict }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Header(GitHeaderEntry { header: Section::Tracked }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Header(GitHeaderEntry { header: Section::New }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { staging: StageStatus::Unstaged, .. }),
            ],
        );

        assert_entry_paths(
            &entries,
            &[
                None,
                Some("conflict.txt"),
                None,
                Some("src/lib.rs"),
                Some("src/main.rs"),
                Some("tests/test.rs"),
                None,
                Some("another_new.rs"),
                Some("new_file.txt"),
                Some("src/utils.rs"),
            ],
        );

        let second_status_entry = entries[3].clone();
        panel.update_in(cx, |panel, window, cx| {
            panel.toggle_staged_for_entry(&second_status_entry, window, cx);
        });

        cx.update(|_window, cx| {
            SettingsStore::update_global(cx, |store, cx| {
                store.update_user_settings(cx, |settings| {
                    settings.git_panel.get_or_insert_default().sort_by_path = Some(true);
                })
            });
        });

        panel.update_in(cx, |panel, window, cx| {
            panel.selected_entry = Some(7);
            panel.stage_range(&git::StageRange, window, cx);
        });

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        let entries = panel.read_with(cx, |panel, _| panel.entries.clone());
        #[rustfmt::skip]
        pretty_assertions::assert_matches!(
            entries.as_slice(),
            &[
                Status(GitStatusEntry { status: FileStatus::Untracked, staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { status: FileStatus::Unmerged(..), staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { status: FileStatus::Untracked, staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { status: FileStatus::Tracked(..), staging: StageStatus::Staged, .. }),
                Status(GitStatusEntry { status: FileStatus::Tracked(..), staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { status: FileStatus::Untracked, staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { status: FileStatus::Tracked(..), staging: StageStatus::Unstaged, .. }),
            ],
        );

        assert_entry_paths(
            &entries,
            &[
                Some("another_new.rs"),
                Some("conflict.txt"),
                Some("new_file.txt"),
                Some("src/lib.rs"),
                Some("src/main.rs"),
                Some("src/utils.rs"),
                Some("tests/test.rs"),
            ],
        );

        let third_status_entry = entries[4].clone();
        panel.update_in(cx, |panel, window, cx| {
            panel.toggle_staged_for_entry(&third_status_entry, window, cx);
        });

        panel.update_in(cx, |panel, window, cx| {
            panel.selected_entry = Some(9);
            panel.stage_range(&git::StageRange, window, cx);
        });

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        let entries = panel.read_with(cx, |panel, _| panel.entries.clone());
        #[rustfmt::skip]
        pretty_assertions::assert_matches!(
            entries.as_slice(),
            &[
                Status(GitStatusEntry { status: FileStatus::Untracked, staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { status: FileStatus::Unmerged(..), staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { status: FileStatus::Untracked, staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { status: FileStatus::Tracked(..), staging: StageStatus::Staged, .. }),
                Status(GitStatusEntry { status: FileStatus::Tracked(..), staging: StageStatus::Staged, .. }),
                Status(GitStatusEntry { status: FileStatus::Untracked, staging: StageStatus::Unstaged, .. }),
                Status(GitStatusEntry { status: FileStatus::Tracked(..), staging: StageStatus::Unstaged, .. }),
            ],
        );

        assert_entry_paths(
            &entries,
            &[
                Some("another_new.rs"),
                Some("conflict.txt"),
                Some("new_file.txt"),
                Some("src/lib.rs"),
                Some("src/main.rs"),
                Some("src/utils.rs"),
                Some("tests/test.rs"),
            ],
        );
    }

    #[gpui::test]
    async fn test_amend_commit_message_handling(cx: &mut TestAppContext) {
        init_test(cx);
        let fs = FakeFs::new(cx.background_executor.clone());
        fs.insert_tree(
            "/root",
            json!({
                "project": {
                    ".git": {},
                    "src": {
                        "main.rs": "fn main() {}"
                    }
                }
            }),
        )
        .await;

        fs.set_status_for_repo(
            Path::new(path!("/root/project/.git")),
            &[("src/main.rs", StatusCode::Modified.worktree())],
        );

        let project = Project::test(fs.clone(), [Path::new(path!("/root/project"))], cx).await;
        let workspace =
            cx.add_window(|window, cx| Workspace::test_new(project.clone(), window, cx));
        let cx = &mut VisualTestContext::from_window(*workspace, cx);

        let panel = workspace.update(cx, GitPanel::new).unwrap();

        // Test: User has commit message, enables amend (saves message), then disables (restores message)
        panel.update(cx, |panel, cx| {
            panel.commit_message_buffer(cx).update(cx, |buffer, cx| {
                let start = buffer.anchor_before(0);
                let end = buffer.anchor_after(buffer.len());
                buffer.edit([(start..end, "Initial commit message")], None, cx);
            });

            panel.set_amend_pending(true, cx);
            assert!(panel.original_commit_message.is_some());

            panel.set_amend_pending(false, cx);
            let current_message = panel.commit_message_buffer(cx).read(cx).text();
            assert_eq!(current_message, "Initial commit message");
            assert!(panel.original_commit_message.is_none());
        });

        // Test: User has empty commit message, enables amend, then disables (clears message)
        panel.update(cx, |panel, cx| {
            panel.commit_message_buffer(cx).update(cx, |buffer, cx| {
                let start = buffer.anchor_before(0);
                let end = buffer.anchor_after(buffer.len());
                buffer.edit([(start..end, "")], None, cx);
            });

            panel.set_amend_pending(true, cx);
            assert!(panel.original_commit_message.is_none());

            panel.commit_message_buffer(cx).update(cx, |buffer, cx| {
                let start = buffer.anchor_before(0);
                let end = buffer.anchor_after(buffer.len());
                buffer.edit([(start..end, "Previous commit message")], None, cx);
            });

            panel.set_amend_pending(false, cx);
            let current_message = panel.commit_message_buffer(cx).read(cx).text();
            assert_eq!(current_message, "");
        });
    }

    #[gpui::test]
    async fn test_open_diff(cx: &mut TestAppContext) {
        init_test(cx);

        let fs = FakeFs::new(cx.background_executor.clone());
        fs.insert_tree(
            path!("/project"),
            json!({
                ".git": {},
                "tracked": "tracked\n",
                "untracked": "\n",
            }),
        )
        .await;

        fs.set_head_and_index_for_repo(
            path!("/project/.git").as_ref(),
            &[("tracked", "old tracked\n".into())],
        );

        let project = Project::test(fs.clone(), [Path::new(path!("/project"))], cx).await;
        let workspace =
            cx.add_window(|window, cx| Workspace::test_new(project.clone(), window, cx));
        let cx = &mut VisualTestContext::from_window(*workspace, cx);
        let panel = workspace.update(cx, GitPanel::new).unwrap();

        // Enable the `sort_by_path` setting and wait for entries to be updated,
        // as there should no longer be separators between Tracked and Untracked
        // files.
        cx.update(|_window, cx| {
            SettingsStore::update_global(cx, |store, cx| {
                store.update_user_settings(cx, |settings| {
                    settings.git_panel.get_or_insert_default().sort_by_path = Some(true);
                })
            });
        });

        cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        })
        .await;

        // Confirm that `Open Diff` still works for the untracked file, updating
        // the Project Diff's active path.
        panel.update_in(cx, |panel, window, cx| {
            panel.selected_entry = Some(1);
            panel.open_diff(&Confirm, window, cx);
        });
        cx.run_until_parked();

        let _ = workspace.update(cx, |workspace, _window, cx| {
            let active_path = workspace
                .item_of_type::<ProjectDiff>(cx)
                .expect("ProjectDiff should exist")
                .read(cx)
                .active_path(cx)
                .expect("active_path should exist");

            assert_eq!(active_path.path, rel_path("untracked").into_arc());
        });
    }

    fn assert_entry_paths(entries: &[GitListEntry], expected_paths: &[Option<&str>]) {
        assert_eq!(entries.len(), expected_paths.len());
        for (entry, expected_path) in entries.iter().zip(expected_paths) {
            assert_eq!(
                entry.status_entry().map(|status| status
                    .repo_path
                    .as_ref()
                    .as_std_path()
                    .to_string_lossy()
                    .to_string()),
                expected_path.map(|s| s.to_string())
            );
        }
    }

    #[test]
    fn test_compress_diff_no_truncation() {
        let diff = indoc! {"
            --- a/file.txt
            +++ b/file.txt
            @@ -1,2 +1,2 @@
            -old
            +new
        "};
        let result = GitPanel::compress_commit_diff(diff, 1000);
        assert_eq!(result, diff);
    }

    #[test]
    fn test_compress_diff_truncate_long_lines() {
        let long_line = "a".repeat(300);
        let diff = indoc::formatdoc! {"
            --- a/file.txt
            +++ b/file.txt
            @@ -1,2 +1,3 @@
             context
            +{}
             more context
        ", long_line};
        let result = GitPanel::compress_commit_diff(&diff, 100);
        assert!(result.contains("...[truncated]"));
        assert!(result.len() < diff.len());
    }

    #[test]
    fn test_compress_diff_truncate_hunks() {
        let diff = indoc! {"
            --- a/file.txt
            +++ b/file.txt
            @@ -1,2 +1,2 @@
             context
            -old1
            +new1
            @@ -5,2 +5,2 @@
             context 2
            -old2
            +new2
            @@ -10,2 +10,2 @@
             context 3
            -old3
            +new3
        "};
        let result = GitPanel::compress_commit_diff(diff, 100);
        let expected = indoc! {"
            --- a/file.txt
            +++ b/file.txt
            @@ -1,2 +1,2 @@
             context
            -old1
            +new1
            [...skipped 2 hunks...]
        "};
        assert_eq!(result, expected);
    }

    #[gpui::test]
    async fn test_suggest_commit_message(cx: &mut TestAppContext) {
        init_test(cx);

        let fs = FakeFs::new(cx.background_executor.clone());
        fs.insert_tree(
            path!("/project"),
            json!({
                ".git": {},
                "tracked": "tracked\n",
                "untracked": "\n",
            }),
        )
        .await;

        fs.set_head_and_index_for_repo(
            path!("/project/.git").as_ref(),
            &[("tracked", "old tracked\n".into())],
        );

        let project = Project::test(fs.clone(), [Path::new(path!("/project"))], cx).await;
        let workspace =
            cx.add_window(|window, cx| Workspace::test_new(project.clone(), window, cx));
        let cx = &mut VisualTestContext::from_window(*workspace, cx);
        let panel = workspace.update(cx, GitPanel::new).unwrap();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        let entries = panel.read_with(cx, |panel, _| panel.entries.clone());

        // GitPanel
        // - Tracked:
        // - [] tracked
        // - Untracked
        // - [] untracked
        //
        // The commit message should now read:
        // "Update tracked"
        let message = panel.update(cx, |panel, cx| panel.suggest_commit_message(cx));
        assert_eq!(message, Some("Update tracked".to_string()));

        let first_status_entry = entries[1].clone();
        panel.update_in(cx, |panel, window, cx| {
            panel.toggle_staged_for_entry(&first_status_entry, window, cx);
        });

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        // GitPanel
        // - Tracked:
        // - [x] tracked
        // - Untracked
        // - [] untracked
        //
        // The commit message should still read:
        // "Update tracked"
        let message = panel.update(cx, |panel, cx| panel.suggest_commit_message(cx));
        assert_eq!(message, Some("Update tracked".to_string()));

        let second_status_entry = entries[3].clone();
        panel.update_in(cx, |panel, window, cx| {
            panel.toggle_staged_for_entry(&second_status_entry, window, cx);
        });

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        // GitPanel
        // - Tracked:
        // - [x] tracked
        // - Untracked
        // - [x] untracked
        //
        // The commit message should now read:
        // "Enter commit message"
        // (which means we should see None returned).
        let message = panel.update(cx, |panel, cx| panel.suggest_commit_message(cx));
        assert!(message.is_none());

        panel.update_in(cx, |panel, window, cx| {
            panel.toggle_staged_for_entry(&first_status_entry, window, cx);
        });

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        // GitPanel
        // - Tracked:
        // - [] tracked
        // - Untracked
        // - [x] untracked
        //
        // The commit message should now read:
        // "Update untracked"
        let message = panel.update(cx, |panel, cx| panel.suggest_commit_message(cx));
        assert_eq!(message, Some("Create untracked".to_string()));

        panel.update_in(cx, |panel, window, cx| {
            panel.toggle_staged_for_entry(&second_status_entry, window, cx);
        });

        cx.read(|cx| {
            project
                .read(cx)
                .worktrees(cx)
                .next()
                .unwrap()
                .read(cx)
                .as_local()
                .unwrap()
                .scan_complete()
        })
        .await;

        cx.executor().run_until_parked();

        let handle = cx.update_window_entity(&panel, |panel, _, _| {
            std::mem::replace(&mut panel.update_visible_entries_task, Task::ready(()))
        });
        cx.executor().advance_clock(2 * UPDATE_DEBOUNCE);
        handle.await;

        // GitPanel
        // - Tracked:
        // - [] tracked
        // - Untracked
        // - [] untracked
        //
        // The commit message should now read:
        // "Update tracked"
        let message = panel.update(cx, |panel, cx| panel.suggest_commit_message(cx));
        assert_eq!(message, Some("Update tracked".to_string()));
    }
}
